Indian Navy CMDR. Ashok K. Yadav, a pediatrician with the Medical Treatment Facility, US Military Sealift Command (MSC) Mercy Class Hospital Ship USNS MERCY (T-AH 19), shows Indonesian nurse Elle Wardani, how to read cardiac resynchronization therapy (CRT) results, at the Zainoel Abidin Hospital, Banda Aceh, Indonesia, on Jul. 24, 2006 as part of a humanitarian assistance project.US Navy official photo by CHIEF Mass Communication SPECIALIST Don Bray (Released)