| M-MuLV | Moloney Murine Leukemia Virus |
|---|---|
| M-PHD | multiple pituitary hormone deficiencies |
| M-R | muscarinic receptor |
| M-TB | Mycobacterium tuberculosis |
| m-THPC | Meso-tetra(hydroxyphenyl)chlorin |
| M-tropic | Macrophage tropic |
| M-VAC | methotrexate, vinblastin, adriamycin and cisplatin |
| M. leprae | Mycobacterium leprae |
| M. tuberculosis | Mycobacterium tuberculosis |
| M.A.O. | Maximal Acid Output |