2019. MEDICAL COST AND OUT-OF-POCKET EXPENDITURE FOR PRETERM INFANTS: EVIDENCE FROM VIETNAM: Nguyen Thi Binh An1,2, Phuong Minh Hoang3, Phuc Huu Phan3, Peter van Eeuwijk1,2,4 and Günther Fink1,2. The Southeast Asian Journal of Tropical Medicine and Public Health. 50, 6 (Nov. 2019), 1155.