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APA Citation
Nicoll, A., McGarrigle, C., Brady, A. R., Ades, A. E., Tookey, P., Duong, T., Mortimer, J., Cliffe, S., Goldberg, D., Tappin, D., Peckham, C., & Hudson, C. (1998). epidemiology and detection of HIV-1 among pregnant women in the United Kingdom: results from national surveillance 1988-96. BMJ, 316(7127), 253–258. http://access.bl.uk/ark:/81055/vdc_100181698295.0x00004c