title: Cimetidine and cerebral blood flow in elderly patients.
mesh_terms: D000328:Adult; D000368:Aged; D000375:Aging; D002560:Cerebrovascular Circulation / Q000187:drug effects*; D002927:Cimetidine / Q000009:adverse effects*; D003864:Depression, Chemical; D006146:Guanidines / Q000009:adverse effects*; D006801:Humans; D008875:Middle Aged
chemical_list: D006146:Guanidines; D002927:Cimetidine