singletons相关论文
Incidence of uterine torsion during veterinary-assisted dystocia and singleton live births after vag
Objective:To determine the incidence of uterine torsion and their association with live births after vaginal delivery at......
目的分析广西地区先天性肾上腺皮质功能增生症(CAH)筛查中单胎与双胎的筛查与确诊情况,了解新生儿单双胎因素对17-羟孕酮(17-OHP)......
通过对400名独生子女与非独生子女的测试调查对比,掌握了其身体形态、身体素质、身体机能、心理状况的特点。在分析研究青少年独生......