简介： It seems simple: an egg + sperm = one embryo. But if your sperm is "few, vague and abnormal" and your woman is premenopausal at age 37, things start to get complicated.
It seems simple: an egg + sperm = one embryo. But if your sperm is "few, vague and abnormal" and your woman is premenopausal at age 37, things start to get complicated.
凯文·费奇,伊丽莎白·奥尔森,保罗·贝坦尼,克里斯托弗·贝克,丹尼尔·布鲁赫,凯特·戴琳斯,凯瑟琳·哈恩,朱利安·希威德,亨利·杰克曼,杰特·克莱恩,安东尼·麦凯,兰道尔·朴,泰柔娜·派丽丝,埃文·彼得斯,怀亚特·拉塞尔,马特·沙克曼,卡莉·斯考格兰德,塞巴斯蒂安·斯坦,艾米丽·万凯普,Baylen D. Bielitz,Gavin Borders