Special Issue 50th Anniversary of the contraceptive pill

This special issue, generously sponsored by Bayer-Schering-Pharma on the occasion of the fiftieth anniversary of the contraceptive pill brings together five papers previously published in the Journal and selected by the sponsor because of their particular relevance for the occasion, and four totally new commissioned contributions, of an equal level of excellence. The Editors are most grateful to all who made the publication of this most interesting supplement possible.