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Wong, M.L., D. Koh, M.E Barrett, S.S.H Wee, R.K.W Chan, S.K Chew, and COMMUNITY,OCCUPATIONAL & FAMILY MEDICINE. A Comparative Study of Condom Use and Self-reported Sexually Transmitted Infections between Foreign Asian and Local Clients of Sex Workers in Singapore. 2012.

Wong, M.L., et al. A Comparative Study of Condom Use and Self-reported Sexually Transmitted Infections between Foreign Asian and Local Clients of Sex Workers in Singapore. 2012.