ORTHODONTIC WITHOUT BRACKET, DECODING CLEAR TRAY WORKSHOP - 15/01/2021
CAN THO UNIVERSITY OF MEDICINE & PHARMACY - 15/01/2021
ORTHODONTIC WITHOUT BRACKET, DECODING CLEAR TRAY WORKSHOP - 21/03/2021
FALCUTY OF MEDICINE, DA NANG UNIVERSITY - 21/03/2021
ORTHODONTIC WITHOUT BRACKET, DECODING CLEAR TRAY WORKSHOP - 26/04/2021
ZOOM MEETING IN DA NANG, HCMC, CAN THO - 26/04/2021
