C V Apte1, R K S Tomar2, D Sharma3. 1. Associate Professor (Physiology), Oman Medical Collage, Sultanate of Oman, Pune 411004, India. 2. Commanding Officer, 58 Forward Medical Store Deport, C/o 99 APO, India. 3. Classified Specialist (Physiology), Base Hospital, New Delhi, India.