| HLA | histocompatibility leukocyte antigen; histocompatibility locus antigen; homologous leukocyte antibod... |
|---|---|
| HPA | Health Care Practice Act; Health Policy Agenda for the American People; health promotion advocates; ... |
| PEA | pelvic examination under anesthesia; phenylethyl alcohol; phenylethylamine; polysaccharide egg antig... |
| PSA | parasternal short axis; pleomorphic salivary gland adenoma; polyethylene sulfonic acid; polysacchari... |
| TSA | technical surgical assistance; toluene sulfonic acid; total shoulder arthroplasty; total solute abso... |