C. . THANH-TUYEN, T.-T. . NGOC-VAN, D. . KIM-LOAN, and H.-T. . NHAC-VU, “THE PATENTED DRUGS UTILIZATION: A STUDY AT NGUYEN DINH CHIEU HOSPITAL IN BEN TRE PROVINCE FROM 2011 TO 2017”, Int J Pharm Pharm Sci, vol. 11, no. 5, pp. 27–30, May 2019.