title: Problems of recruiting ovum donors.
authors: G
authors: G
authors: Burton
authors: H
authors: H
authors: Abdalla
authors: J W
authors: JW
authors: Studd
mesh_terms: D000367:Age Factors; D005260:Female; D005307:Fertilization in Vitro; D006801:Humans; D009865:Oocytes; D014019:Tissue Donors / Q000600:supply & distribution*; D006113:United Kingdom