title: Controversies and opinions in embryo culture: two- to four-cell transfer vs blastocyst.
authors.affiliation: Department of Obstetrics & Gynaecology, King's College School of Medicine & Dentistry, London, UK.
authors.forename: V N
authors.initials: VN
authors.lastname: Bolton
mesh_terms: D001755:Blastocyst; D000013:Congenital Abnormalities / Q000517:prevention & control; D004624:Embryo Transfer / Q000379:methods*; D005260:Female; D005307:Fertilization in Vitro; D005820:Genetic Testing; D006801:Humans; D008297:Male; D009924:Organ Culture Techniques / Q000379:methods*; D011247:Pregnancy; D015996:Survival Rate; D013997:Time Factors; D016896:Treatment Outcome