[An investigation of phosphatic manure worker pneumoconiosis].
D001031:Apatites; D002617:Chemical Industry; D002681:China; D005260:Female; D005308:Fertilizers; D006801:Humans; D008297:Male; D010710:Phosphates; D011009:Pneumoconiosis / Q000453:epidemiology*
D001031:Apatites; D005308:Fertilizers; D010710:Phosphates