Intrauterine spiral and contraceptive implants are best for prevention of unwanted pregnanciesTrine Aarvold, Britt-Ingjerd NesheimTidsskrift for Den Norske Laegeforening(2016)引用 0|浏览0暂无评分AI 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