[On the evaluation of the external respiration in persons exposed to silica-containing dust].
D006801:Humans; D012129:Respiratory Function Tests; D012829:Silicosis / Q000175:diagnosis* / Q000517:prevention & control*; D014586:USSR
Ob otsenke funktsii vneshnego dykhaniia u lits, podvergaiushchikhsia vozdeĭstviiu kremnezemsoderzhashcheĭ pyli.