Flowchart of children registered in the central database of PUNHSP between 1 January 2013 and 31 December 2013. Wroblewska-SeniukKatarzyna GreczkaGrazyna DabrowskiPiotr Szyfter-HarrisJoanna MazelaJan 2017 <p>PUNSHP = Polish Universal Neonatal Hearing Screening Program; wga = week of gestational age.</p>