The importance of multisite sampling in determining the prevalence of HIV among drug injectors in Glasgow and London.
Haw
S
S
Frischer
M
M
Donoghoe
M
M
Green
S
S
Crosier
A
A
Hunter
G
G
Finlay
A
A
Covell
R
R
Ettmore
B
B
Bloor
M
M
D015528:HIV Seroprevalence; D006801:Humans; D008131:London / Q000453:epidemiology; D012494:Sampling Studies; D012606:Scotland / Q000453:epidemiology; D015819:Substance Abuse, Intravenous