[ON MORBIDITY OF WORKERS OF SULFUR (HYGIENICO-SANITARY INQUIRY  IN SOME REFINERIES OF THE CITY OF CATANIA)].
D001991:Bronchitis; D006801:Humans; D007558:Italy; D009017:Morbidity; D009784:Occupational Diseases; D013455:Sulfur
D013455:Sulfur
BRONCHITIS; ITALY; OCCUPATIONAL DISEASES; SULFUR
SULLA MORBILIT'A DEI LAVORATORI DELLO ZOLFO (INCHIESTA IGIENICO-SANITARIA IN ALCUNE RAFFINERIE DELLA CITT'A DI CATANIA)