| HGM | hog gastric mucosa; human gene mapping; human glucose monitoring |
|---|---|
| HHS | [Department of] Health and Human Services; Hearing Handicap Scale; hereditary hemolytic syndrome; hu... |
| HLA | histocompatibility leukocyte antigen; histocompatibility locus antigen; homologous leukocyte antibod... |
| HLT | heart-lung transplantation; human lipotropin; human lymphocyte transformation |
| hPL | human placental lactogen; human platelet lactogen |