Prof. Prasert Assantachai, Deputy Dean of the Faculty of Medicine Siriraj Hospital, along with Asst.Prof. Witsanu Kumthornthip, Chairman of Department of Rehabilitation Medicine, presided over the international conference “Multimodal Treatments of Spastic Hypertonia: Chemoneurolysis and Other Advanced Interventions” between September 27th – 28th, 2019, at Sirindhorn Room, the ground floor of Chalermprakist Building, Siriraj Hospital, Mahidol University.