| HLT | heart-lung transplantation; human lipotropin; human lymphocyte transformation |
|---|---|
| hPL | human placental lactogen; human platelet lactogen |
| HPV | Hemophilus pertussis vaccine; hepatic portal vein; human papillomavirus; human parvovirus; hypoxic p... |
| HRV | heart rate variability; human reovirus; human rotavirus |
| HSP | Health Systems Plan; heat shock protein; hemostatic screening profile; Henoch-Schonlein purpura; her... |