[1] Univ Chicago, Dept Med, Sect Adult & Pediat Endocrinol Diabet & Metab, Chicago, IL 60637 USA
[2] Univ Chicago, Dept Pediat, Sect Adult & Pediat Endocrinol Diabet & Metab, Chicago, IL 60637 USA
[3] Univ Southampton, Fac Med, Southampton SO9 5NH, Hants, England
[4] Salisbury Dist Hosp, Wessex Reg Genet Lab, Salisbury, Wilts, England
[5] Univ Hosp Southampton NHS Fdn Trust, Wessex Clin Genet Serv, Southampton, Hants, England
[6] Shawnee Mission Med Ctr, Shawnee Mission Endocrinol & Diabet, Shawnee Mission, KS USA