经皮左房室瓣球囊扩张术对风湿性左房室瓣狭窄患者血栓前状态的影响
姚宗芹,付存玉,张志刚,李光彩,张洋
Chinese General Practice . 2016, (24): 2889 -2892 .  DOI: 10.3969/j.issn.1007-9572.2016.24.004