The effect of improved hand and knee delivery position on primipara delivery outcome and comfort
LÜ Hairong,BAO Lei,LUO Li,SUN Yani,WANG Hongli,REN Yu,ZHAI Jinguo
Chinese Journal of Nursing . 2021, (5): 716 -720 .  DOI: 10.3761/j.issn.0254-1769.2021.05.012