| HAN | heroin-associated nephropathy; hyperplastic alveolar nodule |
|---|---|
| HAT | Halsted Aphasia Test; head, arm, trunk; heparin-associated thrombocytopenia; heterophil antibody tit... |
| HATT | heparin-associated thrombocytopenia and thrombosis |
| HBV-MN | membranous nephropathy associated with hepatitis B virus |
| HDPAA | heparin-dependent platelet-associated antibody |