[1] Univ Clin Hosp Opole, Dept Pediat, PL-45040 Opole, Poland
[2] Univ Opole, Fac Hlth Sci, PL-45060 Opole, Poland
[3] Univ Opole, Inst Med Sci, Dept Pediat, PL-47100 Strzelce Opolskie, Poland
[4] Diabet Ctr Children & Adolescents, D-30173 Hannover, Germany
[5] Univ Opole, Inst Med Sci, Dept Cardiol, PL-45040 Opole, Poland
[6] Univ Messina, Dept Human Pathol Adult & Dev Age Gaetano Barresi, Pediat Unit, I-98122 Messina, Italy
[7] Univ & Azienda Osped Univ Verona, Dept Surg, Sect Pediat Diabet & Metab, I-37126 Verona, Italy
[8] Hosp Vithas Almeria, Pediat Unit, Inst Hispalense Pediat, Almeria 04120, Spain
[9] Univ Almeria, Fac Hlth Sci, Dept Nursing Sci & Physiotherapy, Almeria 04120, Spain
[10] Steno Diabet Ctr Copenhagen, DK-2730 Herlev, Denmark
[11] Univ Copenhagen, Dept Clin Med, DK-2200 Copenhagen, Denmark
[12] Linkoping Univ, Dept Biomed & Clin Sci, S-58183 Linkoping, Sweden