^aDepartment of Paediatrics and Adolescent Medicine

^bInstitute of Biology and Medical Genetics

^cDepartment of Radiology, First Faculty of Medicine, Charles University and General University Hospital in Prague, Prague, Czech Republic

Received 26 November 2018 Accepted 16 May 2019

Correspondence to Jiri Zeman, MD, PhD, Department of Paediatrics and Adolescent Medicine, Charles University and General University Hospital in Prague, Ke Karlovu 2, 120 00 Prague 2, Czech Republic, Tel: +420 224967043; e-mail: [email protected]