M in Research
- Mitochondrial neurogastrointestinal encephalopathy syndrome
- Mitochondrial trifunctional protein deficiency
- Mitral atresia
- Mitral regurgitation deafness skeletal anomalies
- Mitral valve prolapse- familial- autosomal dominant
- Mitral valve prolapse- familial- X-linked
- Miura syndrome
- Mixed connective tissue disease
- Mixed sclerosing bone dystrophy
- Miyoshi myopathy
- MMEP syndrome
- MN1
- Mobius syndrome
- MODY syndrome
- Moebius axonal neuropathy hypogonadism
- Moebius syndrome 1
- Mohr syndrome
- Mohr-Tranebjaerg syndrome
- Mollica Pavone Antener syndrome
- Moloney syndrome