| OHR | occupational health research; Office of Health Research |
|---|---|
| PHC | personal health costs; posthospital care; premolar hypodontia, hyperhidrosis, [premature] canities [... |
| PHN | paroxysmal noctural hemoglobinuria; passive Heymann nephritis; postherpetic neuralgia; public health... |
| PHS | Physicians' Health Study; pooled human serum; posthypnotic suggestion; Public Health Service |
| SMOH | Senior Medical Officer of Health; Society of Medical Officers of Health |