| LB | lamellar body; large bowel; left breast; left bronchus; left bundle; left buttock; leiomyoblastoma; ... |
|---|---|
| MDBDF | March of Dimes Birth Defect Foundation |
| PBLC | peripheral blood lymphocyte count; premature birth living child; problem-based learning curriculum |
| POB | penicillin, oil, beeswax; phenoxybenzamine; place of birth |
| PTB | patellar tendon bearing; prior to birth |