1. Dhaka Medical College Hospital, Dhaka, Bangladeshs
2. Saheed Suharwardi Medical College and Hospital, Dhaka, Bangladesh
3. Bangabandhu Sheikh Mujib Medical University (BSMMU), Dhaka, Bangladesh
4. Ramatibodi Hospital, Mahidol University, Bangkok, Thailand
5. Chennai Skin Foundation & Yesudian Research Institute, Chennai, India.
6. Institute of Laser & Aesthetic Medicine (ILAMED) , Mumbai, India.
7. Post Graduate Institute Medical & Research PGIMER, Chandigarh, India.
8. National Skin Center, Singapore
Perform Electrosurgery, Cryo Surgery, Intralesional Injection, Excisional Biopsy, Incisional Biopsy, Punch Biopsy, Mucosal Biopsy, Mesotherapy,Chemical Peeling, Platelet rich plasma therapy, Sclerotherapy, Botox Injection, Filler Injection, Liposuction, Laser Surgery, Reconstructive Surgery, Nail surgery, Hair Transplant, Vitiligo Surgery, Dermoscopy.