[1] Med Univ Lodz, Clin Electrocardiol, Lodz, Poland
[2] Med Univ Lodz, Clin Gen & Colorectal Surg, Lodz, Poland
[3] Polish Mothers Mem Hosp Res Inst Lodz, Clin Endocrinol & Metab Disorders, Lodz, Poland
[4] Med Univ Lodz, Dept Endocrine Disorders & Bone Metab, Lodz, Poland