Related Clues:
- Dream indicators
- X-ray dosages
- Absorbed-energy measurements
- Sleep phases
- Units of radiation absorbed
- X-ray measurements
- Absorbed-dose units
- Radiation meas. units
- Bedtime phenomena
- Deep sleep stages
- Certain sleep stages, in brief
- X-ray dosage units
- Phenomena after retiring
- Dosimeters measure them
- Angular measures: Abbr.