R O BROOKS
R O BROOKS
F BRADSHAW,A CRITCHLOW,G NAGELSCHMIDT
F BRADSHAW
J BORROWDALE,C E SHANAHAN
J BORROWDALE
D E BARNES
D E BARNES
A search for simple combinations of F.E.V. (1 second) and F.V.C. independent of age and physique in coalminers [0.03%]
煤矿工人用力呼气量与肺活量简易结合的筛选指标及其年龄、体格矫正公式的研究
J R ASHFORD,D P DUFFIELD,J W FAY
J R ASHFORD