放置宫内节育器与继发性不孕关系的队列研究Yuehua YANG,Guanrong WANG,Jian ZHOU,Xinyan LI,Min ZHANG,Jie LIN,Ning XU,Xiaoyan TAN,Haoqin XUChinese Journal of Family Planning(2020)引用 5|浏览17AI 理解论文溯源树样例生成溯源树,研究论文发展脉络Chat Paper正在生成论文摘要