| PHA | posterior hypothalamic area |
|---|---|
| PHA-1 | Pseudohypoaldosteronism type 1 |
| PHA-L | Phaseoleus vulgaris leucoagglutinin |
| PHA-L | Phytohemagglutinin-L |
| PHA-LCM | phytohaemagglutinin stimulated leucocyte conditioned medium |
| PHA-P | Phytohaemagglutinin-P |
| PHAH | polyhalogenated aromatic hydrocarbon |
| Phase I | phase |
| PhAsO | Phenylarsine oxide |
| PHAT | passive haemagglutination test |