| PrR | progesterone receptor |
|---|---|
| Pw | progesterone withdrawal |
| SP | sacroposterior; sacrum to pubis; salivary progesterone; schizotypal personality; semi-private [room]... |
| UPS | ultraviolet photoelectron spectroscopy; uninterruptible power supply; uroporphyrinogen synthetase; u... |
| IET | intrauterine exchange transfusion |