| HOPI | history of present illness |
|---|---|
| HPC | hemangiopericytoma; hippocampal pyramidal cell; history of present complaint; holoprosencephaly; hyd... |
| HPI | hepatic perfusion index; history of present illness |
| NP | nasopharynx, nasopharyngeal; near point; necrotizing pancreatitis; neonatal-perinatal; neuritic plag... |
| NPI | Narcissistic Personality Inventory; neuropsychiatric institution; no present illness; nucleoplasmic ... |