605,941 SOCIETY Society for the Study of Fertility Winter Meeting, 1989 Warwick 18t.h-20th December : abstracts of papers. - Cambridge, Colchester : Journals of Heproucation and Fertility, 1989. - VI, 26 s. ; 25 cm (Journal of Reproducation and Fertility ; ISSN 0954-0725, abstracts ser. nr. 4)