[1] Univ Autonoma Barcelona UAB, Serv Endocrinol, CIBERDEM, Hosp Santa Creu i St Pau,SEEN, Barcelona, Spain
[2] Hosp Clin Barcelona, Serv Endocrinol, CIBEROBN, SEEN, Barcelona, Spain
[3] Hosp Univ Bellvitge IDIBELL, Serv Endocrinol & Nutr, CIBEROBN, Barcelona, Spain
[4] Hosp Univ Germans Trias i Pujol, Serv Endocrinol, Inst Invest, SEEN, Badalona, Spain
[5] Univ Complutense, Serv Endocrinol, Hosp Clinico San Carlos, IDISSC,Fac Med,SEEN, Madrid, Spain
[6] Hosp Clin Barcelona, Serv Endocrinol & Nutr, CIBERDEM, SEEDO,SEEN, Barcelona, Spain
[7] Univ Autonoma Barcelona, Dept Med, SEEN, SEEDO, Sabadell, Spain
[8] Univ Autonoma Madrid, Hosp Univ La Paz, Serv Obstet & Ginecol, Grp Interes Endocrinol Reproduct,SEF, Madrid, Spain
[9] Univ Francisco Vitoria, Serv Urol, Hosp Univ Puerta Hierro, Lyx Inst Urol,Grp Interes,Asociac Espanola Urol, Majadahonda, Spain
[10] Univ Autonoma Madrid, Serv Ginecol & Obstet, Unidad Reprod Asistida, Hosp Fdn Jimenez Diaz,Asociado Med,SEGO, Madrid, Spain
[11] Hosp Clin Barcelona, Serv Endocrinol & Nutr, SEDYN, Barcelona, Spain
[12] Hosp Clin Barcelona, Serv Endocrinol & Nutr, SEDYN, CIBEROBN,Inst Salud Carlos III, Barcelona, Spain
[13] Clin Univ Navarra, Dept Endocrinol & Nutr, CIBEROBN, Inst Salud Carlos III,SEEN, Pamplona, Spain