[1] Univ Chile, Fac Med, Dept Med Interna Sur, Orquideas 1068,Dept 302,POB 7510258, Santiago, Chile
[2] Univ Espiritu Sante, Escuela Posgrad Salud, Samborondon, Ecuador
[3] Univ Catol Nuestra Senora Asuncion, Fac Ciencias Salud, Asuncion, Paraguay
[4] Hosp Clin Univ Chile, Serv Obstet & Ginecol, Santiago, Chile
[5] Clin Int, Ginecol Obstet, Lima, Peru
[6] Univ Nacl Nordeste, Fac Med, Dept Mujer Ninez & Adolescencia, Corrientes, Argentina
[7] Univ Costa Rica, Fac Med, Dept Ginecol, San Juan, Costa Rica
[8] Univ Cartagena, Grp Invest Salud Mujer, Cartagena, Colombia
[9] Univ Nacl Cordoba, Catedra Ginecol 2, Cordoba, Argentina
[10] Univ Andina Cusco, Dept Acad Med Humana, Cuzco, Peru
[11] Asociac Para Argentina Estudio Climaterio, Buenos Aires, Argentina
[12] Univ Buenos Aires, Hosp Clin Jose San Martin, Buenos Aires, Argentina
[13] Univ Fed Minas Gerais, Gynecol & Obstet, Belo Horizonte, Brazil
[14] Hosp Angeles, Obstet & Ginecol, Puebla, Mexico
[15] Clin Tserotas, Panama City, Panama