de Silva, H.A.2013-11-272013-11-272003Journal of the Ceylon College of Physicians, 36(1-2):p.14-26https://dl.nsf.gov.lk/handle/1/10106Medical SciencesAlzheimer's diseaseDementiaEpidemiological surveysCognitive impairmentMini mental state examinationDiagnosisPsychiatryMedial temporal lobe atrophyApolipoprotein genotypeSerum homocysteineAgingA