Heart rhythm disturbances in seafarers.
D000328:Adult; D001145:Arrhythmias, Cardiac / Q000453:epidemiology / Q000209:etiology*; D001161:Arteriosclerosis / Q000150:complications; D006331:Heart Diseases / Q000150:complications; D006801:Humans; D006973:Hypertension / Q000150:complications; D008875:Middle Aged; D009326:Naval Medicine; D011044:Poland; D012767:Ships