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		Original Articles		
		
			Cardiology		
		The effect of beta-blockers in acute heart failure according to heart rate
	
 
	- Hyun-Jin Kim, Sang-Ho Jo, Min-Ho Lee, Won-Woo Seo, Jin-Oh Choi, Kyu-Hyung Ryu
 
	- Korean J Intern Med. 2021;36(4):898-905.
 
	
		
 
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		Comparison of calcium-channel blockers for long-term clinical outcomes in patients with vasospastic angina
	
 
	- Sung Eun Kim, Sang-Ho Jo, Seung Hwan Han, Kwan Yong Lee, Sung Ho Her, Min-Ho Lee, Won-Woo Seo, Seong-Sik Cho, Sang Hong Baek
 
	- Korean J Intern Med. 2021;36(1):124-134.