| NSD | Nairobi sheep disease; neonatal staphylococcal disease; neurosecretory dysfunction; night sleep depr... |
|---|---|
| PMS | patient management system; perimenstrual syndrome; periodic movements during sleep; phenazine methos... |
| PS | pacemaker syndrome; paired stimulation; paradoxical sleep; paraspinal; parasympathetic; Parkinson sy... |
| qhs | every hour of sleep [Lat. quaque hora somni] |
| QS | question screening; quiet sleep |