1. Department of Nuclear Medicine and PET, Postgraduate Institute of Medical Education and Research, Chandigarh, India
2. Division of Radiological Safety, Medical Applications Section, Atomic Energy Regulatory Board, Mumbai, Maharashtra, India
3. Division of Nuclear Medicine, Mallinckrodt Institute of Radiology, WUSTL, St. Louis, MO, USA
4. Department of Nuclear Medicine, AIIMS, All India Institute of Medical Sciences, New Delhi, India