| MM | macromolecule; Maelzels metronome; major medical [insurance]; malignant melanoma; manubrium to malle... |
|---|---|
| MS | Maffuci syndrome; maladjustment score; mandibular series; Marfan syndrome; Marie-Strumpell [syndrome... |
| PMGCT | primary mediastinal germ-cell tumor |
| Af | Atrial flutter = AFL |
| AFL | Atrial flutter = Af |