Hao, Yibin, Affiliated People's Hospital of Zhengzhou, Southern Medical University Hao, Zhenxuan, Affiliated People's Hospital of Zhengzhou, Southern Medical University Haouala, Habib Haouala, Habib Hapeta, Beata, Students Scientific Circle, Department of Cardiology, Congenital Heart Diseases and Electrotherapy, Silesian University of Medicine, Silesian Centre for Heart Diseases Haponiuk, Ireneusz Haponiuk, Ireneusz, Department of Paediatric Cardiac Surgery, Pomeranian Centre of Traumatology, Gdansk, Poland Haponiuk, Ireneusz, Department of Paediatric Cardiac Surgery, Mikolaj Kopernik Pomeranian Traumatology Centre, Gdansk, Poland (Poland) Haponiuk, Ireneusz, Department of Physiotherapy, University of Physical Education and Sport in Gdańsk Haponiuk, Ireneusz, Oddział Kardiochirurgii Dziecięcej im. WOŚP, Copernicus PL Sp. z o.o., Gdańsk Haponiuk, Ireneusz, 1. Department of Pediatric Cardiac Surgery, Copernicus Hospital, Gdansk, Poland 2. Department of Physiotherapy, Faculty of Rehabilitation and Kinesiology, Gdansk University of Physical Education and Sport, Poland (Poland) Haponiuk, Ireneusz Haponiuk, Ireneusz Haponiuk, Julia Haponiuk-Skwarlińska, Julia Harazny, Joanna Harb, Serge C Harbalıoglu, Hazar, Düzce Akçakoca State Hospital, Department of Cardiology, Düzce Harbaoui, Brahim Harcęko-Zielińska, Ewelina Hardzina, Małgorzata, Department of Electrocardiology, John Paul II Hospital in Krakow Hardzina, Małgorzata, Department of Electrocardiology, John Paul II Hospital in Krakow, Poland (Poland) Hardzina, Małgorzata, Department of Electrocardiology, Institute of Cardiology, Jagiellonian University Medical College, John Paul II Hospital, Kraków, Poland Hare, David L. Harjola, Veli-Pekka