| heliox | helium oxygen |
|---|---|
| HELLP | Haemolysis, Elevated Liver Enzymes and Low Platelets |
| HELLP | Hemolysis, Elevated Liver enzymes, and Low Platelet count |
| HELP | Heparin-induced Extracorporeal LDL-Precipitation |
| HELP | Heparin-induced extracorporeal low density lipoprotein precipitation |