| MRAS | main renal artery stenosis |
|---|---|
| MS | Maffuci syndrome; maladjustment score; mandibular series; Marfan syndrome; Marie-Strumpell [syndrome... |
| MSS | Marshall-Smith syndrome; massage; Medical Superintendents' Society; Medicare Statistical System; men... |
| MVS | mitral valve stenosis; multivendor service |
| NCS | National Collaborative Study; neocarcinostatin; nerve conduction study; newborn calf serum; no conce... |