Influence of coexisting internal diseases on hearing loss in patients over 50 years of age - Świdziński, Piotr; Frankowska, Anna; Małaczyńska, Bogna; Linkowska-Świdzińska, Kamila; Hashimoto, Anna; Bilińska, Barbara; Maciejewska-Szaniec, Zofia; Kowal, Piotr; Sekula, Alicja; Maciejewska, Barbara (Family Medicine & Primary Care Review, 2020)