"Host of Chasing Life and CNN chief medical correspondent; active participant and interviewer."

"Host of the program, identified as Sanjay at the end of the transcript; a neurosurgeon and CNN correspondent."

"Host of the podcast and CNN Chief Medical Correspondent; leads the interview and shares personal anecdotes about his daughters."

"Guest on the episode (Speaker C), CNN Chief Medical Correspondent and neurosurgeon."

"Host of the podcast (Speaker A), identified by the guest at 09:42; he facilitates the discussion on memory and storytelling."