17th 4th International Congress on Heart & Cardiology,Vancouver, Canada

24th Aging & Social Change  Tenth Interdisciplinary Conference,Vancouver, Canada

8th 2nd International Conference on Social Sciences and Arts 2020,Bangkok, Thailand

23rd Global Summit on Pediatrics and Neonatology,Gargantilla Del Lozoya, Spain

3rd 3rd World Pediatric Infectious Disease Congress,Singapore, Singapore