[1] Univ Hosp Basel, Div Endocrinol Diabetol & Metab, Basel, Switzerland
[2] QualiCCare Assoc, Baden, Switzerland
[3] Swiss Soc Endocrinol & Diabetol, Baden, Switzerland
[4] Cantonal Hosp St Gallen, Div Internal Med & Endocrinol, St Gallen, Switzerland
[5] Univ Hosp Basel, Univ Ctr Gastrointestinal Dis, Clarunis, Basel, Switzerland
[6] Univ Hosp Zurich, Div Endocrinol Diabetol & Metab, Zurich, Switzerland
[7] Univ Zurich, Inst Primary Care, Zurich, Switzerland
[8] Univ Hosp Zurich, Zurich, Switzerland
[9] Med Univ Clin, Cantonal Hosp Aarau, Internal Med, Aarau, Switzerland
[10] Practice Endocrinol & Diabetol, Bern, Switzerland
[11] Cantonal Hosp St Gallen, Inst Primary Healthcare, St Gallen, Switzerland