Methodology for clinical practice guidelines --identifying and forming the scope, topic and clinical questionJin Yinghui, Han Fei, Wang Qiang, Wang Xinghuan257-261
How to achieve the data input and storage of REDCap system safelyGeng Hui, Tian Guoxiang, He Hairong, Ma Mao, Wang Yajun, Zeng Xiantao, Lyu Jun262-264
Rayyan: a new online document management software for systematic reviewsLi Jieli, Li Sheng, Xu Chang, Zhang Chao, Huang Jingyu, Ruan Xiaolan, Li Zhuo265-268
A meta-analysis of 15 case-control studies evaluating the relationship between the angiotensinogen gene T174M polymorphism and essential hypertension in Han ChineseGu Wei, Lin Yun, Wang Su, Ceng Yutong, Zhang Jingmei, Li Zhizhong269-274
A meta-analysis of dual energy CT in diagnosis of coronary stenosis and ischemic myocardiumShi Jiabin, Wang Aiguo, Liu Zheng, Fu Changping275-278
Meta-analysis of the association between SNP83 polymorphism of PDE4D gene and ischemic stroke in Chinese populationHu Yi, Zhang Ting, Chen Wenjing, Zhang Xiachun, Ye Lu, Li Li279-282
The follow-up study of dual antiplatelet therapy (DAPT) duration and the prognosis of coronary heart diseases patients after drug-eluting stent (DES) implantationWang Guowei, Gan Jihong, Zhong Wenbo, Ma Liqun, Lu Jun, Ren Ke, Qin Yongwen283-287
15-year trend of acute ST-segment elevation myocardial infarction in NanyangYang Xiaoqing, Li Yudong, Gao Jianbu, Qiao Chong288-291
Effects of Exhaustive Exercise and Exercise Preconditioning on Transmural Repolarization Dispersion and Connexin 43 in Rat HeartMa Hong, Tian Pan, Li Junxia, Zhao Feng, Wang Yang, Cui Yingkai, Zhang Gang, Cao Xuebin292-296
Expression and prognosis of MMP-2 in patients with ST segment elevation myocardial infarctionTuo Tian, Guo Junlin297-299,303