| 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... |
| suppl | supplement, supplementary |
| PO, p.o. | 1) Per Os; by mouth; 구강으로, 경구로 2) Phone Order; 전화지시 3) Pos... |