Alcohol--a specific psychosocial factor in the Polish merchant navy.
D000062:Accidents, Occupational; D000328:Adult; D000375:Aging; D000428:Alcohol Drinking / Q000523:psychology*; D000437:Alcoholism / Q000453:epidemiology* / Q000523:psychology / Q000628:therapy; D000531:Altitude; D006801:Humans; D008875:Middle Aged; D009326:Naval Medicine; D011044:Poland; D012767:Ships