title: Multiple-birth risk associated with in vitro fertilization: revised guidelines.
authors.forename: L
authors.initials: L
authors.lastname: Lipshultz
authors.forename: D
authors.initials: D
authors.lastname: Adamson
mesh_terms: D004624:Embryo Transfer; D019317:Evidence-Based Medicine; D005307:Fertilization in Vitro; D006801:Humans; D009099:Multiple Birth Offspring; D017410:Practice Guidelines as Topic; D012306:Risk