Chakornbandit, B., and F. Tongprasert. “Comparison of Preterm Delivery Rates between HIV-Infected Pregnant Women Receiving Highly Active Antiretroviral Therapy (HAART) Containing Protease Inhibitors (PIs) and HIV-infected Pregnant Women Receiving Zidovudine Monotherapy”. Thai Journal of Obstetrics and Gynaecology, vol. 23, no. 2, June 2015, pp. 68-75, doi:10.14456/tjog.2015.12.