Effect of early intravenous then oral use of metoprolol on heart rate variability for after acute myocardial infarction
SU Rui-ying;CHEN Ya-li;ZHAO Juan;WANG Yong-hui;YIN Hong-shan;XIAO Wen-liang;SUN Ping;WANG Zhi-qian
CLINICAL FOCUS . 2009, (7): 571 -574 .