A piece of my mind: blood lines.
Bell
M H
MH
D000223:Adaptation, Psychological; D004635:Emergency Medicine; D015658:HIV Infections / Q000523:psychology* / Q000635:transmission*; D006801:Humans; D017758:Infectious Disease Transmission, Patient-to-Professional; D016602:Needlestick Injuries; D009784:Occupational Diseases / Q000523:psychology*