| HTB | house tube feeding; human tumor bank |
|---|---|
| HTF | heterothyrotropic factor; house tube feeding; HpaII tiny fragment |
| MSF | macrophage slowing factor; macrophage spreading factor; Medicins sans Frontieres [Doctors without Bo... |
| NBF | no breast feeding |
| PF | pair feeding; peak flow; perfusion fluid; pericardial fluid; periosteal fibroblast; peritoneal fluid... |