MacPhail, C.; Pettifor, A.; Moyo, W.; Rees, H. (2009). Factors associated with HIV testing among sexually active South African youth aged 15–24 years. AIDS Care, 21(4), 456–467.
doi:10.1080/09540120802282586
url to share this paper:
An interview with Sci-Hub Founder Alexandra Elbakyan Who exactly should pay for academic research