[Tissue effects of quartz in the presence of iron ore dusts].
D004391:Dust; D006801:Humans; D007501:Iron; D058085:Iron Compounds; D011791:Quartz; D012829:Silicosis
D004391:Dust; D058085:Iron Compounds; D011791:Quartz; D007501:Iron
IRON; QUARTZ; SILICOSIS