แพงคำไหล ศ. and วัชรวงษ์ไพบูลย์ พ., “Development of a Protocol to Support Opioids Access at Home for End-of-Life Patient, Yangsisurat District, Maha Sarakham Province”, J Health Sci Thai, vol. 30, no. Supplement 1, pp. S76-S86, Jun. 2021.