Journal of obstetrics and gynaecology. - Bristol : Serono Laboratories Ltd., 1986- - v. : ill. ; 25 cm. - Bimonthly - Quarterly - Vol.7, no.1 (July 1986)- Latest issue consulted: Vol. 13, no. 2 (Mar. 1993) ISSN: 0144-3615 National Library of Medicine Call No.: PER W1 / AS138