Letter: Hepatitis B as an occupational hazard.
D003815:Dentists; D006509:Hepatitis B / Q000382:microbiology / Q000517:prevention & control / Q000635:transmission*; D008487:Medical History Taking; D009784:Occupational Diseases / Q000382:microbiology / Q000517:prevention & control / Q000635:transmission*; D012463:Saliva / Q000382:microbiology; D013242:Sterilization