| IEM | immuno-electron microscopy; inborn error of metabolism |
|---|---|
| ISEM | immunosorbent electron microscopy |
| LEM | lateral eye movement; Leibovitz-Emory medium; leukocyte endogenous mediator; light emission microsco... |
| LM | lactic acid mineral [medium]; lactose malabsorption; laryngeal mask; laryngeal muscle; lateral malle... |
| MC & S | microscopy, culture, and sensitivity |