title: Extending IVF cycles beyond usual three or four shows benefit.
authors.affiliation: London.
authors.forename: Jacqui
authors.initials: J
authors.lastname: Wise
mesh_terms: D001723:Birth Rate; D004624:Embryo Transfer / Q000706:statistics & numerical data*; D005260:Female; D005307:Fertilization in Vitro / Q000706:statistics & numerical data*; D006801:Humans; D008297:Male; D011247:Pregnancy