1. Karunruk Palliative Care Center, Faculty of Medicine, Khon Kaen University, Khon Kaen, Thailand.
2. President, Thai Palliative Care Society, Khon Kaen, Thailand.
3. Department of Social Medicine, Maesot General Hospital, Tak, Thailand.
4. Department of Social Medicine, Phra Nakhon Si Ayutthaya Regional Hospital, Phra Nakhon Si Ayutthaya, Thailand.
5. Department of Medicine, Udonthani Regional Hospital, Udonthani, Thailand.
6. Department of Palliative Care and Long Term Care, Surin Regional Hospital, Surin, Thailand.
7. Department of Social Medicine, Roi-Et Regional Hospital, Roi-Et, Thailand.
8. Department of Pulmonary and Critical Care Medicine, Faculty of Medicine, Phramongkutklao Hospital, Bangkok, Thailand.
9. Department of Social Medicine, Buddhachinaraj Regional Hospital, Phitsanulok, Thailand.
10. Department of Nursing, Nangrong General Hospital, Buriram, Thailand.
11. Jairak Palliative Care Center, Vachira Phuket Regional Hospital, Phuket, Thailand.
12. Department of Social Medicine, Songkhla General Hospital, Songkhla, Thailand.
13. Department of Nursing, Loei General Hospital, Loei, Thailand.
14. Department of Social Medicine, Nan General Hospital, Nan, Thailand.
15. Department of Social Medicine, Buriram Regional Hospital, Buriram, Thailand.