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											| Reviewer											Deep appreciation to our reviewers in the past year 
												Korean J Intern Med. 2023;38(1):1-1.   Published online December 28, 2022												 |  |  | Editorials |  
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											| Editorial											Messages from new editor-in-chief Hyoung-Chul Oh 
												Korean J Intern Med. 2023;38(1):2-2.   Published online December 28, 2022												 |  |  
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											| Gastroenterology / Editorial											Fecal microbiota transplantation is not a magical treatment, but better too early than too late Jongbeom Shin 
												Korean J Intern Med. 2023;38(1):3-4.   Published online December 28, 2022												 |  |  
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											| Cardiology / Editorial											Clinical and epidemiological implications of the data on the Korean clinical hypertension cohort Jinho Shin 
												Korean J Intern Med. 2023;38(1):5-6.   Published online December 28, 2022												 |  |  | Reviews |  
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											| Cardiology / Review											Updated risk assessments for sudden cardiac death in hypertrophic cardiomyopathy patients with implantable cardioverter-defibrillator Yae Min Park 
												Korean J Intern Med. 2023;38(1):7-15.   Published online November 10, 2022												 
													Hypertrophic cardiomyopathy (HCM) is a genetic disease associated with a risk of malignant ventricular tachyarrhythmias and sudden cardiac death (SCD). Assessment of the SCD risk is crucial for its clinical management, and there has been considerable interest in developing risk stratification strate..												 |  |  
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											| Rheumatology / Review											Assessment and nonsurgical management of low back pain: a narrative review Sung Cheol Park, Min-Seok Kang, Jae Hyuk Yang, Tae-Hoon Kim 
												Korean J Intern Med. 2023;38(1):16-26.   Published online November 24, 2022												 
													Low back pain (LBP) is a common condition that affects people of all ages and income levels worldwide. The etiology of LBP may be mechanical, neuropathic, systemic, referred visceral, or secondary to other causes. Despite numerous studies, the diagnosis and management of LBP remain challenging due to..												 |  |  | Original Articles |  
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											| Gastroenterology / Original Article											Analysis of the gut microbiome using extracellular vesicles in the urine of patients with colorectal cancer Hyuk Yoon, Nam-Eun Kim, Jihye Park, Cheol Min Shin, Nayoung Kim, Dong Ho Lee, Jae Yong Park, Chang Hwan Choi, Jae Gyu Kim, Young Soo Park 
												Korean J Intern Med. 2023;38(1):27-38.   Published online November 10, 2022												 
													Background/Aims: We evaluated the gut microbiome using extracellular vesicles (EVs) in the urine of patients with colorectal cancer (CRC) to determine whether gut-microbe-derived EVs could be a potential biomarker for the diagnosis of CRC.
Methods: EVs were isolated from the urine of patients with ..												 |  |  
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											| Gastroenterology / Original Article											Effect of age on the prognosis of intrahepatic cholangiocarcinoma Jung Hun Kim, Young Koog Cheon, Tae Yoon Lee, Sang Hoon Lee, Hyunji Chung 
												Korean J Intern Med. 2023;38(1):39-47.   Published online December 21, 2022												 
													Background/Aims: Intrahepatic cholangiocarcinoma (iCCA) is a subgroup of cholangiocarcinoma and is the second- most-common primary hepatic tumor. Several predictive and prognostic factors have been analyzed; however, in this study we focused on the influence of age. Our aim was to use real-world res..												 |  |  
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											| Gastroenterology / Original Article											Recognition and attitudes of Korean physicians toward fecal microbiota transplantation: a survey study Tae-Geun Gweon, Yoo Jin Lee, Sung Kyun Yim, Seung Yong Kim, Chang Hwan Choi, Young-Seok Cho;  on behalf of the Microbiome Research Group of the Korean Society for Neurogastroenterology and Motility 
												Korean J Intern Med. 2023;38(1):48-55.   Published online November 10, 2022												 
													Background/Aims: Fecal microbiota transplantation (FMT) represents a treatment option for recurrent Clostridioides difficile infection (CDI). Recently, FMT has been investigated in various clinical settings other than CDI. This study examined Korean physicians’ recognition of FMT and their attitude..												 |  |  
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											| Cardiology / Original Article											Long-term cardiovascular events in hypertensive patients: full report of the Korean Hypertension Cohort Jin Young Lee, Jean Kyung Bak, Mina Kim, Ho-Gyun Shin, Kyun-Ik Park, Seung-Pyo Lee, Hee-Sun Lee, Ju-Yeun Lee, Kwang-il Kim, Si-Hyuck Kang, Jang Hoon Lee, Se Yong Jang, Ju-Hee Lee, Kye Hun Kim, Jae Yeong Cho, Jae-Hyeong Park, Sue K. Park, Hae-Young Lee 
												Korean J Intern Med. 2023;38(1):56-67.   Published online December 14, 2022												 
													Background/Aims: This study evaluated the long-term cardiovascular complications among Korean patients with hypertension and compared them with that of controls without hypertension.
Methods: The Korean Hypertension Cohort (KHC) enrolled 11,043 patients with hypertension and followed them for more ..												 |  |  
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											| Pulmonology / Original Article											Clinical outcomes of and risk factors for secondary infection in patients with severe COVID-19: a multicenter cohort study in South Korea Yong Sub Na, Ae-Rin Baek, Moon Seong Baek, Won-Young Kim, Jin Hyoung Kim, Bo young Lee, Gil Myeong Seong, Song-I Lee 
												Korean J Intern Med. 2023;38(1):68-79.   Published online November 24, 2022												 
													Background/Aims: Secondary infection with influenza virus occurs in critically ill patients and is associated with substantial morbidity and mortality; however, there is limited information about it in patients with severe coronavirus disease 2019 (COVID-19). Thus, we investigated the clinical outco..												 |  |  
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											| Endocrinology-metabolism / Original Article											Comorbidities associated with high-risk obstructive sleep apnea based on the STOP-BANG questionnaire: a nationwide population-based study Gene Huh, Kyoung do Han, Yong-Moon Park, Chan-Soon Park, Kyu-na Lee, Eun Young Lee, Jung-Hae Cho 
												Korean J Intern Med. 2023;38(1):80-92.   Published online November 10, 2022												 
													Background/Aims: We investigated the prevalence, associated factors, and comorbidities of high-risk obstructive sleep apnea (OSA) as determined by the STOP-BANG questionnaire in a Korean adult population.
Methods: Data were obtained from 7,650 adults (aged ≥ 40 years) who participated in the Korea ..												 |  |  
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											| Endocrinology-metabolism / Original Article											Diabetes screening in South Korea: a new estimate of the number needed to screen to detect diabetes Kyoung Hwa Ha, Kyung Ae Lee, Kyung-Do Han, Min Kyong Moon, Dae Jung Kim 
												Korean J Intern Med. 2023;38(1):93-100.   Published online November 24, 2022												 
													Background/Aims: The Korean Diabetes Association (KDA) guidelines recommend adults aged ≥ 40 years and adults aged ≥ 30 years with diabetes risk factors for diabetes screening. This study aimed to determine the age threshold for diabetes screening in Korean adults.
Methods: This study was based o..												 |  |  
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											| Infectious diseases / Original Article											A study on changes in lung function, neutralizing antibodies, and symptoms of adult patients hospitalized with COVID-19 Moon Seong Baek, Seong-Ho Choi, Won-Young Kim, Min-Chul Kim, Eun-Jeong Joo, Mi Suk Lee, Hyun Ah Kim, Sook In Jung, Yu Shi Nae, Bongyoung Kim, Yaeji Lim, Jin-Won Chung 
												Korean J Intern Med. 2023;38(1):101-112.   Published online October 25, 2022												 
													Background/Aims: To identify changes in symptoms and pulmonary sequelae in patients with coronavirus disease 2019 (COVID-19).
Methods: Patients with COVID-19 hospitalized at seven university hospitals in Korea between February 2020 and February 2021 were enrolled, provided they had ≥ 1 outpatient..												 |  |  
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											| Rheumatology / Original Article											Prevalence, incidence, and risk factors of malignancy in patients with rheumatoid arthritis: a nationwide cohort study from Korea Kyung Min Ko, Su-Jin Moon 
												Korean J Intern Med. 2023;38(1):113-124.   Published online August 20, 2021												 
													Background/Aims: This study aims to evaluate the incidence of malignancy in patients with rheumatoid arthritis (RA) and to investigate risk factors for such in a nationwide, population-based cohort.
Methods: In a large, prospective, observational cohort study, 5,077 patients with RA were enrolled f..												 |  |  
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											| Rheumatology / Original Article											Incidence and prevalence of seropositive rheumatoid arthritis among Korean women of childbearing age: a nationwide population-based study Min Kyung Chung, Chan Hee Lee, Jin Su Park, Hyun Sun Lim, Jisoo Lee 
												Korean J Intern Med. 2023;38(1):125-133.   Published online May 19, 2022												 
													Background/Aims: Women with rheumatoid arthritis (RA) are often diagnosed with the disease during their reproductive years; however, its incidence and prevalence among women of childbearing age have not been studied. The objective of this study was to estimate the incidence and prevalence of seropos..												 |  |  | Images of interest |  
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											| Endocrinology-metabolism / Image of interest											A rare adrenocorticotropic hormone-producing nasal neuroendocrine tumor with multiple metastasis So-yun Kim, Yoonchul Ha, Jin Man Kim, Kun ho Kim, Yea Eun Kang 
												Korean J Intern Med. 2023;38(1):134-136.   Published online September 2, 2022												 |  |  
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											| Endocrinology-metabolism / Image of interest											Polysplenia syndrome with truncal pancreas presenting as diabetic ketoacidosis Hea Min Yu, Jun Choul Lee 
												Korean J Intern Med. 2023;38(1):137-138.   Published online September 22, 2022												 |  |  
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											| Gastroenterology / Image of interest											Esophageal wall thickening due to salivary gland heterotopia Dae Gon Ryu, Cheol Woong Choi, Su Jin Kim 
												Korean J Intern Med. 2023;38(1):139-140.   Published online September 1, 2022												 |  |  |