Physicians’ awareness concerning primary immunodeficiencies in the Ternopil Region of Ukraine - Boyarchuk, Oksana; Lewandowicz-Uszyńska, Aleksandra; Kinash, Maria; Haliyash, Natalia; Sahal, Iryna; Kovalchuk, Tetiana (Pediatria Polska - Polish Journal of Paediatrics, 2018)