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....
胡里奥·托雷斯,蒂尔达·斯文顿,罗伯特·菲茨杰拉德·迪格斯,伊莎贝拉·罗西里尼,卡塔利娜·萨韦德拉,詹姆斯·斯卡利,莱斯·纳克里,斯派克·伊因本德,Logan J. Alarcon-Poucel,格蕾塔·李,拉里·欧文斯,Glo Tavarez,凯利·麦柯马克,Eudora Peterson,罗纳德·皮特,Greta Titelman,Shakina,西奥·马尔茨,River L. Ramirez,Sheila Moikangoa