[1] Hosp Univ Son Dureta, Res Unit, Serv Endocrinol, IUNICS, Palma de Mallorca 07014, Spain
[2] Univ Complutense, Dept Surg, Hosp Clin San Carlos, E-28040 Madrid, Spain
[3] Hosp Univ Son Dureta, Pulm Serv, Mallorca, Spain
[4] Karolinska Inst, Dept Med, Huddinge, Sweden
[5] Hosp Alcoy, Dept Surg, Alicante, Spain
[6] Hosp Vilanova Arnau, Pulm Serv, Lerida, Spain
[7] Hosp Univ Son Dureta, Lab Med, Mallorca, Spain
[8] Hosp Gen Gregorio Maranon, Dept Nutr, Madrid, Spain
[9] Inst Serv Sociales & Deport Consejo Insular Palma, Santiago, Spain
[10] Univ Santiago, Serv Endocrinol, Santiago, Spain
[11] Hosp Univ Son Dureta, Pathol Serv, Mallorca, Spain
[12] Univ Santiago, Dept Physiol, Santiago, Spain
[13] Hosp Univ Son Dureta, Coronary Care Unit, Mallorca, Spain
[14] Hosp Girona Dr Josep Trueta, Serv Endocrinol, Girona, Spain
[15] Hosp Badalona Germans Trias & Pujol, Badalona, Spain
[16] Univ Navarra Clin, Serv Endocrinol, Pamplona, Spain
[17] Hosp Univ Son Dureta, Surg Serv, Mallorca, Spain
[18] Univ Turin, Dept Endocrinol, Turin, Italy
[19] Hosp Clin Barcelona, Serv Endocrinol, Barcelona, Spain
[20] Univ Calif San Francisco, San Francisco, CA 94143 USA
[21] Hosp Univ Son Dureta, Psychiat Serv, Mallorca, Spain
[22] Hosp Clin Barcelona, Surg Serv, Barcelona, Spain
[23] Ruber Clin, Madrid, Spain
[24] Hosp Son Llatzer, Serv Endocrinol, Mallorca, Spain
[25] Hosp Clin Barcelona, Nutr Serv, Barcelona, Spain
[26] Hosp Univ Gregorio Maranon, Obes Unit, Madrid, Spain
[27] Hosp Girona Dr Josep Trueta, Serv Endocrinol, Girona, Spain
[28] Hosp Univ Son Dureta, Anesthesia Serv, Mallorca, Spain
[29] Columbia Univ, Dept Med, New York, NY USA
[30] Univ Genoa, Dept Surg, Genoa, Italy
[31] Univ Cambridge, Cambridge, England