[1] CHRU Nantes, Clin Endocrinol, Nantes, France
[2] Univ Copenhagen, DK-1168 Copenhagen, Denmark
[3] Univ Coll Dublin, Dublin, Ireland
[4] Scripps Clin, La Jolla, CA USA
[5] Louisiana State Univ, Baton Rouge, LA 70803 USA
[6] Univ Sao Paulo, Sch Med, BR-05508 Sao Paulo, Brazil
[7] Univ Calgary, Calgary, AB T2N 1N4, Canada
[8] Inst Mexicano Seguro Social, Ciudad Madero, Mexico
[9] Univ Liverpool, Liverpool L69 3BX, Merseyside, England
[10] Novo Nordisk AS, Soborg, Denmark
[11] Columbia Univ, New York, NY USA