1Comparison of early pregnancy outcomes of double high quality cleavage embryos and elective single blastocyst in the frozen-thawed embryo transfer cyclesLiu Qi, Xie Juanke, Wei Duo, Hu Lin, Song Bingbing, Zhang Cuilian, Yin Baoli4419-44212The effect of compound Zaofan pill for treating chronic aplastic anemia in China:a meta-analysisXu Shumei, An Qi, Wang Lei4422-44263Comparison of the effects of mitral valvuloplasty and mitral valve replacement in the treatment of severe ischemic mitral insufficiencyLiu Jiangbo, Luo Hong, Fu Qinglin, Zang Suhua, Zhang Yanzhi, Zhang Xin4426-44294Comparison of thyroid function in patients with diabetic nephropathy at different phasesGao Yue, Xiong Huiqin, Li Xialian4430-44325The influence of laminectomy on upper adjacent segment degeneration following lumbar long-segment fixation and decompression surgeryMa Zhaoxin, Pi Guofu, Sun Jianguang, Huang Shilei, Li Feng, Sun Jianhao4433-44356Clinical outcomes study of different operations of coronary artery bypass graftingZhang Hui4436-44397Effects of bevacizumab on the treatment outcome in patients with advanced hepatocellular carcinoma treated with TACEYue Xipeng, Li Ying, Bie Liangyu, Li Jing4439-44428The comparison of dosimetric distribution of tomography and intensity modulated conformal radiotherapy for stage ⅡA/ ⅡB testicular seminomaHu Jiegang, Fan Ruitai4442-44449Analysis of influencing factors inflammatory bowel disease complicated with anemiaRen Dongmei, Wang Hong4445-444710Investigation and analysis of the current situation of obstetric nursing records in Henan ProvinceLi Xiuping4447-4449