1. Faculty of Nursing; Chiang Mai University; Chiang Mai Thailand
2. Department of Allied Health Sciences; Faculty of Medical Sciences; University of Sri Jayewardenepura; Nugegoda Sri Lanka
3. Department of Physiology; Faculty of Medical Sciences; University of Sri Jayewardenepura; Nugegoda Sri Lanka
4. Department of Public Health Nursing; Faculty of Nursing; Chiang Mai University; Chiang Mai Thailand