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APA Citation
McDonald, C., Lambert, J., Nayagam, D., Welz, T., Poulton, M., Aleksin, D., & Welch, J. (2007). why are children still being infected with HIV? Experiences in the prevention of mother-to-child transmission of HIV in south London. Sexually transmitted infections, 83(1), 59–63. http://access.bl.uk/ark:/81055/vdc_100137789570.0x000017