[1] Katholieke Univ Leuven, Univ Hosp, Dept Obstet & Gynecol, Gasthuisberg, Leuven, Belgium
[2] Univ Cattolica, Villa del Rosario Hosp, Grp Italo Belga, Rome, Italy
[3] Univ Cattolica, Gemelli Hosp, Grp Italo Belga, Rome, Italy
[4] Endometriosis Ctr, Villach, Austria
[5] Univ Ulm, Ulm, Germany
[6] Univ Hosp Tubingen, UKT, Tubingen, Germany
[7] Minist Hlth Russian Federat, VI Kulakov Res Ctr Obstet Gynecol & Perinatol, Moscow, Russia
[8] Moscow State Univ Med & Dent, Dept Reprod Med & Surg, Moscow, Russia
[9] Univ Roma Tor Vergata, Dept Biomed & Prevent, Rome, Italy
[10] Univ Hosp Strasbourg, Dept Obstet & Gynecol, Strasbourg, France
[11] Latiffa Hosp, Dept Obstet & Gynecol, Dubai, U Arab Emirates
[12] Univ British Columbia, Womens Hosp, Dept Obstet & Gynecol, Vancouver, BC, Canada