| HPP | Hereditary Pyro-Poikilocytosis |
|---|---|
| HPP | hereditary pyropoikilocytosis; history of presenting problems |
| HPP, hPP | hydroxyphenylpyruvate; hydroxypyrozolopyrimidine; human pancreatic polypeptide |
| HPPA | hydroxyphenylpyruvic acid |
| HPPD | hours per patient day |
| HPPH | 5-(4-hydroxyphenyl)-5-phenyl-hydantoin |
| HPPO | high partial pressure of oxygen; hydroxyphenyl pyruvate oxidase |