Fioretti P, Gambacciani M, Spinetti A, Cagnacci A, Paoletti A M, Felipetto R, Melis G B
Department of Obstetrics and Gynecology, University of Pisa, School of Medicine, Italy.
Ann N Y Acad Sci. 1991;622:302-6. doi: 10.1111/j.1749-6632.1991.tb37875.x.