[Lesions of the upper respiratory tract caused by fluorine during the production of superphosphate].
D011756:Diphosphates; D004194:Disease; D005459:Fluorides; D005461:Fluorine / Q000633:toxicity*; D006801:Humans; D009784:Occupational Diseases; D012120:Respiration Disorders; D012137:Respiratory System; D012140:Respiratory Tract Diseases
D011756:Diphosphates; D005461:Fluorine; C033414:superphosphate; D005459:Fluorides
FLUORINE/toxicology; OCCUPATIONAL DISEASES; RESPIRATORY SYSTEM/diseases