| HRH2 | histamine receptor H2 |
|---|---|
| HRS | Hamilton Rating Scale; Hamman-Rich syndrome; health and rehabilitative services; hepatorenal syndrom... |
| HTLVR | human T-cell leukemia virus receptor |
| HTR | histidine transport regulator; 5-hydroxytryptamine receptor |
| IGFR | insulin-like growth factor receptor |