| LESP | lower esophageal sphincter pressure |
|---|---|
| LOS | length of stay; Licentiate in Obstetrical Science; lipo-oligosaccharide; low cardiac output syndrome... |
| LOS(P) | lower [o]esophageal sphincter (pressure) |
| MaxEP | maximum esophageal pressure |
| NEMD | nonspecific esophageal motor dysfunction |