“…The survey, carried out in 1984 and 1985, covered women between 15 and 45 years of age in Italy, France, Great Britain, Spain and the Federal Republic of Germany, and the results have been published separately for each country (Riphagen, van der Vurst & Lehert, 1984, 1985a,b, 1986a. In this paper, only data on women between 41 and 45 are used, unless stated otherwise.…”