title: Reply.
authors.affiliation: New Hope Fertility Center, New York, NY. Electronic address: johnzhang98@yahoo.com.
authors.forename: John J
authors.initials: JJ
authors.lastname: Zhang
mesh_terms: D005260:Female; D005307:Fertilization in Vitro / Q000379:methods*; D006801:Humans; D007247:Infertility, Female / Q000628:therapy*; D007248:Infertility, Male / Q000628:therapy*; D008297:Male; D011247:Pregnancy; D018873:Pregnancy Rate