[The effect of the supplementary use of vitamins on some physiological functions in workers in the electrical locomotive brigade].
D004032:Diet; D006801:Humans; D015596:Nutrition Assessment; D009790:Occupations; D014801:Vitamin A; D014815:Vitamins
D014815:Vitamins; D014801:Vitamin A
OCCUPATIONS AND PROFESSIONS; VITAMINS/nutrition and diet