1 Cardiology Outpatient Clinic, Military Medical Academy Memorial Teaching Hospital of the Medical University of Lodz - Central Veterans' Hospital, Lodz, Poland.
2 Department of Internal Medicine and Cardiac Rehabilitation of the Medical University of Lodz, Lodz, Poland.
3 Maria Konopnicka Paediatric Centre, Central Teaching Hospital of the Medical University, Lodz, Poland.
4 Department of Orthopaedics and Traumatology, Medical University of Lodz, Lodz, Poland.