[1] Primary Hlth Care Ctr Cartagena Casco, Cartagena, Spain
[2] Serv Murciano Salud, Calle Maestro Frances 1, Murcia 30201, Spain
[3] Primary Hlth Care Ctr La Mina, Gerencia Ambit Atencio Primaria Barcelona Ciutat, Inst Catala Salut, Placa Maria Angels Rosell Simplicio 1, Barcelona 08930, Spain
[4] Fdn Recerca Atencio Primaria Salut Jordi Gol & Gu, Unitat Suport Recerca Barcelona, DAP Cat Grp, Carrer Sardenya 375 Entresol, Barcelona 08025, Spain
[5] CIBER Diabet & Associated Metab Dis CIBERDEM, Av Monforte Lemos,3-5 Pabellon 11 Planta 0, Madrid 28029, Spain
[6] Primary Hlth Care Ctr Raval Sud, Inst Catala Salut, Gerencia Atenc Primaria, Avinguda Drassanes 17-21, Barcelona 08001, Spain
[7] Hosp Santa Creu & Sant Pau, Dept Endocrinol & Nutr, Carrer St Quinti 89, Barcelona 08041, Spain
[8] Miguel Hernandez Univ, Clin Med Dept, N-332 Km 87 S-N, Alicante 03550, Spain
[9] Hosp Univ Santa Lucia, Cardiol Dept, Calle Minarete S-N, Cartagena 30202, Spain
[10] Serv Murciano Salud, Calle Minarete S-N, Murcia 30202, Spain