TY - BOOK ED - OrganizaciĆ³n Mundial de la Salud TI - Recent advances in medically assisted conception: Report of a who scientific group T2 - Who technical report series, issn 0512-3054 SN - 92-4-120820-1 AV - RG134 R43 PY - 1992/// CY - Geneva PB - Organizacion mundial de la salud KW - InseminaciĆ³n artificial humana KW - In vitro ER -