Vol. XXXIX, no. 4, 2012 ISSN: 0390-6663 CLINICAL AND EXPERIMENTAL OBSTETRICS & GYNECOLOGY an International Journal Editors-in-Chief M. Marchetti J.H. Check Montréal (CND) Camden, NJ (USA) Assistant Editor J. Wilson San Diego - CA (USA) Editorial Board Publishing Organization (M. Beaucage): 7847050 CANADA, Inc. - 4900 Côte St-Luc - Apt # 212 - Montréal, Qué. H3W 2H3 (Canada) Tel. +514-4893242 - Fax +514-4854513 - E-mail: canlux@mgroup-online.com - www.irog.net Editorial Office (M. Critelli): Galleria Storione, 2/A - 35123 Padua (Italy) - Tel. (39) 049 8756900 - Fax (39) 049 8752018 e-mail: irog@onnisantonio.191.it CLINICAL AND EXPERIMENTAL OBSTETRICS AND GYNECOLOGY (ISSN 0390-6663) publishes original work, preferably brief reports, in the fields of Gynecology, Obstetrics, Fetal Medicine, Gynecological Endocrinology and related subjects. (Fertility and Sterility, Menopause, Uro-gynecology, Ultrasound in Obstetrics and Gynecology, Sexually Transmitted Diseases, Reproductive Biological Section). The Journal is covered by INDEX MEDICUS, MEDLINE, EMBASE/Excerpta Medica, PUD MED. CLINICAL AND EXPERIMENTAL OBSTETRICS AND GYNECOLOGY is issued every three months in one volume per year by 7847050 CANADA Inc. Montréal. Printed in Italy by “La Garangola”, Tipografia Editrice - Via E. Dalla Costa, 6 - 35129 Padova (Italy). Audet-Lapointe P., Montréal (Canada) Axt-Fliedner R., Lübeck (Germany) Basta A., Krakow (Poland) Bender H.J., Dusseldorf (Germany) Bhattacharya N., Calcutta (India) Bonilla Musoles F., Valencia (Spain) Charkviani T., Tbilisi (Georgia) Dexeus S., Barcelona (Spain) Di Paola G., Buenos Aires (Argentina) Eskes T.K.A.B., Nijmegen (The Netherlands) Farghaly S.A., New York (USA) Friedrich M., Homburg (Germany) Gomel V., Vancouver (Canada) Gorins A., Paris (France) Grella P.V., Padua (Italy) Holub Z., Kladno (Czech Republic) Jordan J.A., Birmingham, England (UK) Kaplan B., Petach Tikva (Israel) Kralj B., Ljubljana (Slovenia) Markowska J., Poznan (Poland) Marth C., Innsbruck (Austria) Meden-Vrtovec H., Ljubljana (Slovenia) Murta E.F.C., Uberaba (Brasil) Papadopoulos N., Alexandroupolis (Greece) Rakar S., Ljubljana (Slovenia) Sciarra J.J., Chicago, IL (USA) Stelmachow J., Warsaw (Poland) Varras M.N., Athens (Greece) Winter R., Graz (Austria) Founding Editor A. Onnis Montréal (CND)