| MCA | major coronary artery; Maternity Center Association; medical care administration; methylcholanthrene... |
|---|---|
| MCAB | monoclonal antibody |
| MCG | magnetocardiogram; membrane coating granule; monoclonal gammopathy |
| MG | Marcus Gunn [pupil]; margin; medial gastrocnemius [muscle]; membranous glomerulonephritis; menopausa... |
| MGUS | monoclonal gammopathies of undetermined significance |