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					| Reviews |  
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											| Pulmonology / Review											Recent advances in diagnostic technologies in lung cancer Hye Jung Park, Sang Hoon Lee, Yoon Soo Chang 
												Korean J Intern Med. 2020;35(2):257-268.   Published online February 28, 2020												 
													The increase in lung cancer incidence of Korea has been dampened since 2000; however, increased human lifespan, interest in health care and the widespread implementation of health examinations have resulted in a considerable rise in detection of small lesions that need to be differentiated from lung..												 |  |  
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											| Pulmonology / Review											Latent tuberculosis infection: recent progress and challenges in South Korea Doosoo Jeon 
												Korean J Intern Med. 2020;35(2):269-275.   Published online February 28, 2020												 
													Management of latent tuberculosis infection (LTBI) is a critical element in the elimination of tuberculosis (TB). However, the low positive predictive value of the current diagnostic tests and the low acceptance and completion rate of the isoniazid- based regimen are major barriers to the implementa..												 |  |  
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											| Pulmonology / Review											Role of phosphodiesterase-4 inhibitors in chronic obstructive pulmonary disease Chin Kook Rhee, Deog Kyeom Kim 
												Korean J Intern Med. 2020;35(2):276-283.   Published online February 28, 2020												 
													Phosphodiesterase-4 inhibitors (PDE4Is) are potent anti-inf lammatory agents and roflumilast has been used to prevent acute exacerbation of chronic obstructive pulmonary disease (COPD). Roflumilast decreases neutrophil migration, restores cystic fibrosis transmembrane conductance regulator activity,..												 |  |  
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											| Nephrology / Review											Continuous renal replacement therapy in elderly with acute kidney injury
											
																																					[corrected-article] Kristianne Rachel P. Medina-Liabres, Sejoong Kim 
												Korean J Intern Med. 2020;35(2):284-294.   Published online February 28, 2020												 
													The objective of this article is to raise awareness among physicians of the increasing incidence of acute kidney injury in the elderly population and the utility of continuous renal replacement therapy (CRRT) in its management. While CRRT is frequently applied in younger patients, its use in elderly..												 |  |  | Editorials |  
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											| Editorial											Successful transition to the QFT-PLUS assay, but more is needed for diagnosis of latent tuberculosis infection Eun Hye Lee, Young Ae Kang 
												Korean J Intern Med. 2020;35(2):298-299.   Published online February 28, 2020												 |  |  | Original Articles |  
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											| Gastroenterology / Original Article											Outcomes and clinical relevance of stool multiplex bacterial polymerase chain reaction in patients with acute diarrhea: single center experience Won Gun Kwack, Yun Jeong Lim, Ki Hwan Kwon, Jae Woo Chung, Jin Young Oh 
												Korean J Intern Med. 2020;35(2):300-309.   Published online January 29, 2019												 
													Background/Aims: Diagnostic stool multiplex polymerase chain reaction (PCR) testing has attracted considerable interest, because of its high sensitivity, short turnaround time, and ability to detect multiple organisms simultaneously. This study investigates the clinical usefulness of a stool multipl..												 |  |  
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											| Gastroenterology / Original Article											17β-Estradiol reduces inflammation and modulates antioxidant enzymes in colonic epithelial cells Hee Jin Son, Nayoung Kim, Chin-Hee Song, Sun Min Lee, Ha-Na Lee, Young-Joon Surh 
												Korean J Intern Med. 2020;35(2):310-319.   Published online October 22, 2018												 
													Background/Aims: Estrogen is known to have protective effect in colorectal cancer development. The aims of this study are to investigate whether estradiol treatment reduces inflammation in CCD841CoN, a female human colonic epithelial cell line and to uncover underlying mechanisms of estradiol effects.
M..												 |  |  
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											| Gastroenterology / Original Article											Immunological measurement of aspartate/alanine aminotransferase in predicting liver fibrosis and inflammation Hyun Jeong Kim, Sang Yeol Kim, Suk Pyo Shin, Young Joo Yang, Chang Seok Bang, Gwang Ho Baik, Dong Joon Kim, Young Lim Ham, Eui Yul Choi, Ki Tae Suk 
												Korean J Intern Med. 2020;35(2):320-330.   Published online January 23, 2019												 
													Background/Aims: Enzymatic analysis of aspartate/alanine aminotransferase (AST/ALT) does not exactly represent the progression of liver fibrosis or inflammation. Immunoassay for AST (cytoplasmic [c] AST/mitochondrial [m] AST) and ALT (ALT1/ALT2) has been suggested as one alternatives for enzymatic a..												 |  |  
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											| Gastroenterology / Original Article											Comparison of procedural sequence in same-day bidirectional endoscopy: a systematic review and meta-analysis Geun Joo Choi, Hyoung-Chul Oh, Hee-Kyeong Seong, Jeong Wook Kim, Jin Soo Ko, Hyun Kang 
												Korean J Intern Med. 2020;35(2):331-341.   Published online December 27, 2019												 
													Background/Aims: To compare the efficacy and safety of procedural sequence in same-day bidirectional endoscopy.
Methods: We searched OVID-MEDLINE, EMBASE, Cochrane Central Register of Controlled Trials, and Google Scholar to identify randomized controlled trials that compared the procedural sequenc..												 |  |  
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											| Cardiology / Original Article											Early efficacy and safety of statin therapy in Korean patients with hypercholesterolemia: Daegu and Gyeongbuk Statin Registry Han Joon Bae, Yun-Kyeong Cho, Hyoung-Seob Park, Hyuck-Jun Yoon, Hyungseop Kim, Seongwook Han, Seung-Ho Hur, Yoon-Nyun Kim, Kwon-Bae Kim, Jae-Kean Ryu, Deug Young Nah, Chang-Wook Nam 
												Korean J Intern Med. 2020;35(2):342-350.   Published online August 19, 2019												 
													Background/Aims: To date, prospective data are limited on efficacy and safety profiles of statin therapy in Korean hypercholesterolemic patients. Hence, the aim of this study was to evaluate the practice patterns of statin therapy and its efficacy and safety through the prospective Daegu and Gyeong..												 |  |  
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											| Cardiology / Original Article											Clinical profiles of patients with surgically resected pheochromocytoma and paraganglioma Sun Hwa Lee, Jae-Hyeong Park, Ja-Yeon Lee, Sang-Rok Lee, Kyoung-Suk Rhee, Jei-Keon Chae, Won-Ho Kim, Ji-Young Sul, Jin Kyung Oh, Hee-Jin Kwon, Jae-Hwan Lee, In-Whan Seong 
												Korean J Intern Med. 2020;35(2):351-359.   Published online February 28, 2019												 
													Background/Aims: Pheochromocytoma and paraganglioma (PPGL) are catecholamine-producing tumors that can cause blood pressure (BP) elevation and cardiovascular complications. Clinical presentation of these tumors may be changed through widespread use of imaging studies, which enables detection of PPG..												 |  |  
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											| Cardiology / Original Article											Differential clinical manifestations and clinical outcome of cancer-related pulmonary embolism Min Sun Kim, Haseong Chang, Su Yeon Lee, Sun Hye Shin, HyeYun Park, Sung-A Chang, Taek Kyu Park, Duk-Kyung Kim, Eun Kyoung Kim 
												Korean J Intern Med. 2020;35(2):360-368.   Published online August 9, 2019												 
													Background/Aims: Although acute pulmonary embolism (PE) adversely impacts survival and should be treated regardless of cancer, the treatment rate of cancer-related PE is relatively low. We aimed to compare clinical characteristics and long term prognosis of PE in patients with or without cancer.
Me..												 |  |  
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											| Cardiology / Original Article											Effects of cigarette smoking on blood lipids in Korean men: Cardiovascular and Metabolic Diseases Etiology Research Center cohort Soo Kyoung Kim, Hyeon Chang Kim, Jee-Seon Shim, Dae Jung Kim 
												Korean J Intern Med. 2020;35(2):369-382.   Published online December 18, 2019												 
													Background/Aims: Cigarette smoking and abnormal blood lipids are major risk factors for cardiovascular disease. The results of previous studies on the relationship between cigarette smoking and dyslipidemia are controversial. In the present study, we investigated the independent association between ..												 |  |  
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											| Pulmonology / Original Article											QuantiFERON-TB Gold PLUS versus QuantiFERON- TB Gold In-Tube test for diagnosing tuberculosis infection Soo Han Kim, Kyung-Wook Jo, Tae Sun Shim 
												Korean J Intern Med. 2020;35(2):383-391.   Published online December 26, 2019												 
													Background/Aims: QuantiFERON-TB Gold PLUS (QFT-PLUS) was developed as a new version of the interferon-γ (IFN-γ) release assay that contains an extra antigen tube to elicit a CD8+ T-cell response in addition to a CD4+ T-cell response. This study aimed to evaluate the performances of QFT-PLUS versus..												 |  |  
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											| Endocrinology-metabolism / Original Article											Association between urinary sodium levels and iodine status in Korea Jonghwa Ahn, Jang Ho Lee, Jiwoo Lee, Ji Yeon Baek, Eyun Song, Hye-Seon Oh, Mijin Kim, Suyeon Park, Min Ji Jeon, Tae Yong Kim, Won Bae Kim, Young Kee Shong, Won Gu Kim 
												Korean J Intern Med. 2020;35(2):392-399.   Published online May 18, 2018												 
													Background/Aims: To evaluate the association between the urinary sodium concentration and iodine status in different age groups in Korea.
Methods: This nationwide, population-based, cross-sectional study used data from the Korean National Health and Nutrition Examination Survey (VI 2-3, 2014 to 20..												 |  |  
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											| Nephrology / Original Article											Assessment of nephrotoxicity of herbal medicine containing aristolochic acid in mice Yi Quan, Long Jin, Kang Luo, Jian Jin, Sun Woo Lim, Yoo Jin Shin, Eun Jeong Ko, Byung Ha Chung, Chul Woo Yang 
												Korean J Intern Med. 2020;35(2):400-407.   Published online November 21, 2019												 
													Background/Aims: It is undetermined if herbal medicines (HM) containing aristolochic acid (AA)-containing have similar nephrotoxicity to AA itself.
Methods: We administered HM containing a high concentration of AA for 5 days (short-term study) or a low concentration of AA for 30 days (long-term stu..												 |  |  
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											| Hemato-oncology / Original Article											Prognostic implications of stromal hyaluronic acid protein expression in resected oropharyngeal and oral cavity cancers Der Sheng Sun, Hye Sung Won, Soon Auck Hong, Ji Hyung Hong, Heejoon Jo, Heejin Lee, Okran Kim, Myung Ah Lee, Yoon Ho Ko 
												Korean J Intern Med. 2020;35(2):408-420.   Published online July 29, 2019												 
													Background/Aims: Hyaluronic acid (HA) regulates cell adhesion, migration and proliferation in various cancers. The clinical implications of HA in resected head and neck squamous cell carcinoma have not been elucidated. We investigated the clinical significance and prognostic value of the expression ..												 |  |  
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											| Hemato-oncology / Original Article											Metabolic comorbidities and medical institution utilization among breast cancer survivors: a national population-based study Jaesung Heo, Mison Chun, Young-Taek Oh, O Kyu Noh, Logyoung Kim 
												Korean J Intern Med. 2020;35(2):421-428.   Published online September 5, 2019												 
													Background/Aims: We investigated metabolic comorbidity status and patterns of medical institution utilization among breast cancer survivors using medical claims data from the Health Insurance Review and Assessment Service (HIRA).
Methods: Using claims data obtained from the HIRA, we selected breast..												 |  |  
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											| Hemato-oncology / Original Article											Clinical impact of anti-thymocyte globulin on survival and graft-versus-host disease in patients undergoing human leukocyte antigen mismatched allogeneic stem cell transplantation Taeyun Kim, Yunsuk Choi, Je-Hwan Lee, Silvia Park, Jae-Sook Ahn, Joon-Ho Moon, Ho-Jin Shin, Won Sik Lee, Dajung Kim, Ho Sup Lee 
												Korean J Intern Med. 2020;35(2):429-437.   Published online January 10, 2019												 
													Background/Aims: Rabbit anti-thymocyte globulin (ATG) is usually incorporated in hematopoietic stem cell transplantation (HSCT) to reduce the incidence of graft-versus-host disease (GVHD). This study aimed to find optimal ATG doses in patients undergoing human leukocyte antigen (HLA)-mismatched allo..												 |  |  
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											| Infectious diseases / Original Article											Diagnostic usefulness of the cytomegalovirus (CMV)-specific T cell-based assay for predicting CMV infection after kidney transplant Taeeun Kim, Hyun-Jeong Lee, Sun-Mi Kim, Joo Hee Jung, Sung Shin, Young-Hoon Kim, Heungsup Sung, Yong Pil Chong, Sang-Oh Lee, Sang-Ho Choi, Yang Soo Kim, Jun Hee Woo, Sung-Han Kim, Duck Jong Han 
												Korean J Intern Med. 2020;35(2):438-448.   Published online June 7, 2018												 
													Background/Aims: We evaluated the usefulness in kidney transplant (KT) candidates of cytomegalovirus (CMV)-specific enzyme-linked immunospot (ELISPOT) assays for predicting the development of post-transplant CMV infections.
Methods: All adult recipients admitted for living-donor KT between March 20..												 |  |  
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											| Allergy / Original Article											Association between primary immunodeficiency and asthma exacerbation in adult asthmatics So-Hee Lee, Ga-Young Ban, Su-Chin Kim, Chang-Gyu Chung, Hyun-Young Lee, Ji-Ho Lee, Hae-Sim Park 
												Korean J Intern Med. 2020;35(2):449-456.   Published online June 14, 2019												 
													Background/Aims: Primary immunodef iciency (PID) is a serious comorbid condition in adult asthmatics that have frequent exacerbations, which requires monthly replacement of intravenous immunoglobulin (IVIG). However, the prevalence and clinical significance of PID in adult asthmatics in Korea have n..												 |  |  
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											| Rheumatology / Original Article											Mutation of ten-eleven translocation-2 is associated with increased risk of autoimmune disease in patients with myelodysplastic syndrome Yoon-Jeong Oh, Dong-Yeop Shin, Sang Mee Hwang, Sung-Min Kim, Kyongok Im, Hee Sue Park, Jung-Ah Kim, Yeong Wook Song, Ana Márquez, Javier Martín, Dong-Soon Lee, Jin Kyun Park 
												Korean J Intern Med. 2020;35(2):457-464.   Published online October 25, 2019												 
													Background/Aims: Myelodysplastic syndrome (MDS) is caused by genetic and epigenetic alteration of hematopoietic precursors and immune dysregulation. Approximately 20% of patients with MDS develop an autoimmune disease (AID). Here, we investigated whether particular genetic mutations are associated w..												 |  |  
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											| Rheumatology / Original Article											Effect of biologics in the level of cytokines in the synovial fluid of patients with ankylosing spondylitis Bon San Koo, Sungsin Jo, Eunji Kwon, Ji Hui Shin, Jin-Wuk Hur, Tae-Hwan Kim 
												Korean J Intern Med. 2020;35(2):465-473.   Published online December 16, 2019												 
													Background/Aims: Biologics are very effective drugs for patients with ankylosing spondylitis (AS). However, there are patients who are not responding to biologics. This study aimed to evaluate the level of tumor necrosis factor α (TNF-α), interleukin (IL)-23, and IL-17 from synovial fluid in patie..												 |  |  | Correspondences |  
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											| Correspondence											Comment on “Birt-Hogg-Dubé syndrome in Korean: clinicoradiologic features and long term follow-up” Hua-Ching Chang, Chih-Wei Sung, Pai-Chien Chou 
												Korean J Intern Med. 2020;35(2):474-475.   Published online January 30, 2020												 |  |  
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											| Correspondence											Response to comment on “Birt-Hogg-Dubé syndrome in Korean: clinicoradiologic features and long term follow-up” Joo Hee Lee, Min Joo Jeon, Joon Seon Song, Eun Jin Chae, Jin-Ho Choi, Gu-Hwan Kim, Jin Woo Song 
												Korean J Intern Med. 2020;35(2):476-477.   Published online January 30, 2020												 |  |  | Images of interest |  
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											| Image of interest											Primary pancreatic small cell carcinoma diagnosed by endoscopic ultrasound-guided fine needle biopsy Seung Yong Park, Keum Ha Choi, Hyung Ku Chon 
												Korean J Intern Med. 2020;35(2):478-479.   Published online October 16, 2018												 |  |  
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											| Image of interest											A rare case of an enlarged celiac lymph node diagnosed as an epidermal inclusion cyst Sung Bum Kim, Kook Hyun Kim, Tae Nyeun Kim, Chan Woo Cho, Joon Hyuk Choi 
												Korean J Intern Med. 2020;35(2):480-481.   Published online January 18, 2019												 |  |  
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											| Image of interest											A case of inverted cystic tubulovillous adenoma of the duodenum Hyung Ku Chon, Hee Chan Yang, Keum Ha Choi, Tae Hyeon Kim 
												Korean J Intern Med. 2020;35(2):482-483.   Published online October 2, 2019												 |  |  
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											| Image of interest											Recurrent intra-abdominal arterial bleedings after severe cough Jee-min Kim, Deog Kyeom Kim 
												Korean J Intern Med. 2020;35(2):484-485.   Published online October 26, 2018												 |  |  |