[1] Hanoi Med Univ, Dept Anaesthesiol, Hanoi 100000, Vietnam
[2] Karolinska Inst, Dept Global Publ Hlth, SE-17111 Stockholm, Sweden
[3] Ca Mau Obstet & Pediat Hosp, Social Affair Dept, Ca Mau 98000, Vietnam
[4] Hanoi Obstet & Gynecol Hosp, Hanoi 100000, Vietnam
[5] Duy Tan Univ, Inst Global Hlth Innovat, Da Nang 550000, Vietnam
[6] Duy Tan Univ, Fac Med, Da Nang 550000, Vietnam
[7] Nguyen Tat Thanh Univ, Ctr Excellence Evidence Based Med, Ho Chi Minh City 70000, Vietnam
[8] Johns Hopkins Univ, Bloomberg Sch Publ Hlth, Baltimore, MD 21205 USA
[9] Natl Univ Singapore, Yong Loo Lin Sch Med, Dept Psychol Med, Singapore 119077, Singapore
[10] Natl Univ Hlth Syst, Dept Psychol Med, Singapore 119228, Singapore
[11] Natl Univ Singapore, Inst Hlth Innovat & Technol iHealthtech, Singapore 119077, Singapore
[12] Inst Hlth Econ & Technol, Hanoi 100000, Vietnam