Hogan, D. R., & Bärnighausen, T. (2012). National HIV prevalence estimates for sub-Saharan Africa: Controlling selection bias with Heckman-type selection models. Sexually transmitted infections, 88, . https://doi.org/10.1136/sextrans-2012-050636
Chicago Style (17th ed.) CitationHogan, Daniel R., and Till Bärnighausen. "National HIV Prevalence Estimates for Sub-Saharan Africa: Controlling Selection Bias with Heckman-type Selection Models." Sexually Transmitted Infections 88 (2012). https://doi.org/10.1136/sextrans-2012-050636.
MLA (9th ed.) CitationHogan, Daniel R., and Till Bärnighausen. "National HIV Prevalence Estimates for Sub-Saharan Africa: Controlling Selection Bias with Heckman-type Selection Models." Sexually Transmitted Infections, vol. 88, 2012, https://doi.org/10.1136/sextrans-2012-050636.