Related Clues:
- Physicians' degrees: Abbr
- Diagnosis deliverers: Abbr
- OBs, e.g
- House and Watson
- Ward healers
- 59 Down's hosp. coworkers
- Residents, e.g.: Abbr
- ICU professionals
- Some hosp. staffers
- No, Who and Zhivago, briefly
- Brief titles for the starts of 20-, 25-, 45- and 52-Across
- They tend IVs
- Treating people, briefly
- OR staffers
- Former white-hat wearers