[An enhancement of physical working efficiency of underground railway workers in the Western Siberia].
Shchetinin
A N
AN
Fomicheva
M L
ML
D000390:Air Ionization; D004777:Environment; D005080:Exercise Test; D006801:Humans; D009784:Occupational Diseases / Q000175:diagnosis / Q000517:prevention & control*; D010809:Physical Fitness; D011890:Railroads; D012800:Siberia