Wahida Zulkifli, N. . .; Amir Mohd Yunus, M. .; Fakarul Radzi Mohamed Mustafa, M. . .; Wei En, K. . .; Chong Yee, L. . .; Weng Hong, N. . .; Rubinee Povanesvaran, N. . .; Zainal , Z. . A Survey on Knowledge of Registered Drugs Amongst Patients from the Specialist Clinic, Malaysia. Al-Nahrain J. Sci. 2019, 22 (3), 26-34.