APA (7th ed.) Citation

Ali Safarnejad, Wim Groot, & Milena Pavlova. (2018). Study design and the estimation of the size of key populations at risk of HIV: Lessons from Viet Nam. BMC.

Chicago Style (17th ed.) Citation

Ali Safarnejad, Wim Groot, and Milena Pavlova. Study Design and the Estimation of the Size of Key Populations at Risk of HIV: Lessons from Viet Nam. BMC, 2018.

MLA (9th ed.) Citation

Ali Safarnejad, et al. Study Design and the Estimation of the Size of Key Populations at Risk of HIV: Lessons from Viet Nam. BMC, 2018.

Warning: These citations may not always be 100% accurate.