1 Center of Pediatrics, Children's Hospital, Affiliate of Vilnius University Hospital Santariskiu Klinikos, Vilnius, Lithuania; Clinic of Pediatrics, Faculty of Medicine, Vilnius University, Vilnius, Lithuania E-mail: augustina.jankauskiene@mf.vu.lt.
2 Clinic of Pediatrics, Faculty of Medicine, Vilnius University, Vilnius, Lithuania E-mail: augustina.jankauskiene@mf.vu.lt.