The risk of accidental exposure to hepatitis B virus via blood contamination in medical students.
D001769:Blood / Q000382:microbiology*; D004504:Education, Medical, Undergraduate; D006509:Hepatitis B / Q000209:etiology*; D006801:Humans; D009339:Needles; D009784:Occupational Diseases / Q000209:etiology*; D012306:Risk