| HLAC | human leukocyte antigen C |
|---|---|
| HLAD | human leukocyte antigen D |
| HPBL | human peripheral blood leukocyte |
| LAA | left atrial appendage; left atrial area; leukemia-associated antigen; leukocyte ascorbic acid |
| LAD | lactic acid dehydrogenase; left anterior descending [artery]; left axis deviation; leukocyte adhesio... |