My Hanh, Bui, 		Duc Tuan, Duong, 		Tien Hung, Tran, 		Huu Chinh, Nguyen, AND 		Thi Tuyet Mai, Kieu.
" Direct costs for treatment of venous thromboembolism complication 90-day after surgery" <em>VNU Journal of Science: Medical and Pharmaceutical Sciences</em> [Online], Volume 35 Number 2 (17 December 2019)