[1] Univ Copenhagen, Glostrup Hosp, Med Dept M, DK-2600 Glostrup, Denmark
[2] Steno Diabet Ctr, DK-2820 Gentofte, Denmark
[3] Umea Univ Hosp, S-90185 Umea, Sweden
[4] Arhus Univ Hosp, Aarhus, Denmark
[5] Sahlgrenska Univ Hosp Ostra, Gothenburg, Sweden
[6] Cornell Univ, Weill Med Coll, New York, NY USA
[7] Karolinska Univ Hosp, Stockholm, Sweden
[8] Helsinki Univ Hosp, Helsinki, Finland
[9] Univ Michigan, Ann Arbor, MI USA
[10] Ullevaal Univ Hosp, Oslo, Norway
[11] Viborg Hosp, Viborg, Denmark
[12] Haukeland Univ Hosp, Bergen, Norway
[13] Univ Alabama, Birmingham, AL USA
[14] Merck Res Labs, W Point, PA USA