[Medical control on the railroads before a run].
D000062:Accidents, Occupational / Q000517:prevention & control; D009722:Nurse Practitioners; D009787:Occupational Medicine; D010808:Physical Examination; D011890:Railroads; D014586:USSR
Predreĭsovyĭ meditsinskiĭ kontrol' na zheleznodorozhnom transporte.