Effect of bituminous coal dust and smoke on the lungs; animal experiments. I. Effects on susceptibility to pneumonia.
D032761:Animal Experimentation; D000818:Animals; D003031:Coal; D004391:Dust; D008168:Lung; D011014:Pneumonia; D011018:Pneumonia, Pneumococcal; D012906:Smoke
D003031:Coal; D004391:Dust; D012906:Smoke
PNEUMONIA, LOBAR/experimental