Folstein MF, Folstein SE, McHugh PRMini-Mental State: a practical method for grading the cognitive state of patients for the clinician . J Psychiatr Res. 1975;12(3):189-198.
2.
Anthony JC, Niaz U., LeResche L., VonKorff M., Folstein MFLimits of the Mini-Mental State as a screening test for dementia and delirium among hospital patients. Psychol Med. 1982 ;12(2):397-408.