| ASS | acute serum sickness; acute spinal stenosis; anterior superior spine; argininosuccinate synthetase |
|---|---|
| CSMAP | celiac-superior mesenteric artery portography |
| LAS | laboratory automation system; lateral amyotrophic sclerosis; laxative abuse syndrome; left anterior-... |
| LASH | left anterior superior hemiblock |
| LSR | lanthanide shift reagent; lecithin/ sphingomyelin ratio; left superior rectus [muscle]; liver/spleen... |