Sumalai Wiwatkunoopakarn. 2001. Drug compliance among essential hypertensive patients at Nan hospital. Field of Study Infections Diseases, Mahidol University;
Sumalai Wiwatkunoopakarn. (2001) Drug compliance among essential hypertensive patients at Nan hospital . Mahidol University/Bangkok.
Sumalai Wiwatkunoopakarn. Drug compliance among essential hypertensive patients at Nan hospital. . Bangkok:Mahidol University, 2001.
Sumalai Wiwatkunoopakarn. (2001) Drug compliance among essential hypertensive patients at Nan hospital . Mahidol University/Bangkok.