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.
卡拉·埃萊哈爾德,詹弗里 托佩拉,恩里克·維綸,埃米利奧·加維拉,雅典娜·瑪塔,哈維爾·費舍爾,查尼·馬丁,曼紐爾陶勒,西爾維婭·卡薩諾娃,Mariano Venancio,Ramón Langa,Berta Ojea,Javier Laorden,Rocío Calvo,Karlos Argui?ano,José María del Río
