| GIS | gas in stomach; gastrointestinal series; geographic information system; guaranteed income supplement... |
|---|---|
| HCTS | high cholesterol and tocopherol supplement |
| HPS | Hantavirus pulmonary syndrome; hematoxylin, phloxin, and saffron; Hermansky-Pudlak syndrome; high-pr... |
| pl | picoliter; placenta; plasma; platelet |
| POU | placenta, ovary, and uterus |