| MHI |
malignant histiocytosis of intestine; Mental Health Index; Mental Health Inventory |
| MHIQ |
McMaster health index questionnaire |
| MHL |
medial hypothalamic lesion |
| MHLC |
Multidimensional Health Locus of Control |
| MHLS |
metabolic heat load stimulator |
| MHN |
massive hepatic necrosis; Mohs hardness number; morbus hemolyticus neonatorum |
| MHO |
microsomal heme oxygenase |
| mho |
reciprocal ohm, siemens unit [ohm spelled backwards] |
| MHP |
hemiplegic migraine; maternal health program; maternal health program; medical center health plan; 1-mercuri-2-hydroxypropane; metropolitan health plan; monosymptomatic hypochondriacal psychosis; multi-skilled health practitioner |
| MHPA |
mild hyperphenylalaninemia |