Research design determines what can be known about modes of HIV transmission.
Brewer
Devon D
DD
Potterat
John J
JJ
Brody
Stuart
S
D004866:Equipment Contamination; D015658:HIV Infections / Q000635:transmission*; D006801:Humans; D007267:Injections / Q000009:adverse effects; D012107:Research Design; D012725:Sexual Behavior