Journal Article
                        
                        Smith, Chris, Thoai D Ngo, Judy  Gold, Phil  Edwards, Uk  Vannak, Ly  Sokhey, Kazuyo  Machiyama, Emma  Slaymaker, Ruby  Warnock, and Ona  McCarthy.  
"Effect of a mobile phone-based intervention on post-abortion contraception: a randomized controlled trial in Cambodia." Bulletin of the World Health Organization 93, no. 12 (2015): 842-850A.