国家自然科学基金面上项目81571838;福建省自然科学基金科技项目2014J01398;福建省卫生系统中青年骨干人才培养项目2014-ZQN-JC40;福建医科大学非直属附属医院科研发展专项基金FZS13021Y;福建省卫生厅青年项目编号:2013-2-158 This study was supported by National Natural Science Foundation of China NO.81571838.Natural Science Foundation of Fujian Province NO.2014J01398.Medical Elite Cultivation Program of Fujian,P.R.C NO.2014-ZQN-JC40.Fujian medical university non-subordinate af2013-2-158