10 studies
Gray
I, IIIa, IIIb, IV
PWID, drug treatment, drug use, opioids, pregnancy, sexual partners, transmission
Australia, Europe, Malaysia, Taiwan, United States
9 studies
Gray
II, IIIb, IV, V
HIV testing, PMTCT, antenatal care, pregnancy
Botswana, Ecuador, Ethiopia, Europe, Hong Kong, Kenya, Malawi, Uganda, United States, Zimbabwe