Division Head and Professor of Head-Neck Surgery Division in Bangladesh Medical University, Dhaka, Bangladesh. PRESIDENT, BANGLADESH HEAD-NECK SOCIETY. VICE PRESIDENT, BANGLADESH THYROID SOCIETY. VICE PRESIDENT, SOCIETY OF OTOLARYNGOLOGISTS- HEAD & NECK SURGEONS OF BANGLADESH. MEMBER, ETHICS REVIEW COMMITTEE, BANGLADESH BIOETHICS SOCIETY. EDITOR, HEAD& NECK CANCER: BANGLADESH PERSPECTIVE.