| AAN | AIDS-associated nephropathy; alpha-amino nitrogen; American Academy of Neurology; American Academy o... |
|---|---|
| NN | neonatal; nevocellular nevus; normally nourished; normal nutrition; nurse's notes |
| RAN | resident's admission notes |
| ERF | Education and Research Foundation; external rotation in flexion; Eye Research Foundation |
| ICR | [distance between] iliac crests; Institute for Cancer Research; Institute for Cancer Research [mouse... |