[Epidemiology and etiology of chronic bronchitis].

Autor: Karnaukh NG, Krushevskiĭ VD, Bednarik ON, Lugovskoĭ SP
Jazyk: ruština
Zdroj: Gigiena i sanitariia [Gig Sanit] 1994 Apr (4), pp. 64-5.
Databáze: MEDLINE