2003f-840 alzheimer's americas analytical anthropology biologicalsciences centralnervoussystemdiseases communicablediseases control deliveryofhealthcare dementia diagnosis diagnosticandtherapeutictechniquesandequipment disciplinesandoccupations disease diseases education environmentandpublichealth fitness formal geographicals geographiclocations health healthcareeconomicsandorganizations healthoccupations healthpolicy infections medical medicine militarymedicine nervoussystem nervoussystemdiseases neurodegenerativediseases neurology policy populationcharacteristics prevention priondiseases publichealth publicpolicy research socialcontrol socialcontrolpolicies socialsciences sociology sociologyandsocialphenomena unitedstates wl300i591a2003