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.
戴夫·谢里登,费莉莎·罗斯,汉娜·费尔曼,罗尼·乔纳,杰弗里·雷迪克,Wayne D Burdette Jr.,Kevin Duffy,Warren Dean Fulton,Sonya Delormier,艾丽卡·黛儿,Ethan Keaton,Rudy Ledbetter,杰森·克罗伊,Leanne Seda,Johnathon Haviland,Donald K. Overstreet,Anthony D. Graziano,Kahzim Yazici