Mr. Chanchai Thongpanich, Director of Thanyarak Khon Kaen Hospital Join as a commentator The 21st Drug Symposium on Drugs, with representatives of personnel at Thanyarak Hospital Join the Oral Presentation and Present the Poster Presentation Learning Horizon The community is the integrated base for drug work. The 21st National Conference on Drug Abuse 2020, December 22-24, 2020 at IMPACT Muang Thong Thani, Nonthaburi Province.