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Dyfyniad Arddull ChicagoLegg, S J., J E. Cotes, and Carol Bevan. Lung Mechanics in Relation to Radiographic Category of Coalworkers' Simple Pneumoconiosis. 1983.
Dyfyniad MLALegg, S J., J E. Cotes, and Carol Bevan. Lung Mechanics in Relation to Radiographic Category of Coalworkers' Simple Pneumoconiosis. 1983.
Rhybudd: Mae'n bosib nad yw'r dyfyniadau hyn bob amser yn 100% cywir.