title: In vitro fertilization and embryo transfer at "Groupe Hospitalier Pitié-Salpetrière," Paris, France.
mesh_terms: D000328:Adult; D004624:Embryo Transfer; D005260:Female; D005307:Fertilization in Vitro; D006801:Humans; D011247:Pregnancy; D011272:Pregnancy, Multiple; D014427:Twins