TY - GEN AU - Tang,X H TI - [An investigation of phosphatic manure worker pneumoconiosis] SN - 0253-9624 PY - 1986///1216 KW - Apatites KW - Chemical Industry KW - China KW - Female KW - Fertilizers KW - Humans KW - Male KW - Phosphates KW - Pneumoconiosis KW - epidemiology N1 - Publication Type: English Abstract; Journal Article ER -