| PHA | passive hemagglutination [test]; peripheral hyperalimentation; phenylalanine; phytohemagglutinin; ph... |
|---|---|
| PHA-NSP | passive hemagglutination to nonstructural protein |
| PHI | passive hemagglutination inhibition; past history of illness; phosphohexose isomerase; physiological... |
| PHN | paroxysmal noctural hemoglobinuria; passive Heymann nephritis; postherpetic neuralgia; public health... |
| RPA | radial photon apsorptiometry; replication protein A; resultant physiologic acceleration; reverse pas... |