[Pneumoconioses among workers of fluorine mines in Slavianka (Sandansko) and Mikhalkova (Devinsko)].
D005459:Fluorides; D005461:Fluorine; D006801:Humans; D008906:Mining; D011009:Pneumoconiosis
D005461:Fluorine; D005459:Fluorides
MINING; PNEUMOCONIOSIS