title: [Small world].
authors: C
authors: C
authors: Hürny
authors: H P
authors: HP
authors: Ludin
mesh_terms: D000368:Aged; D000544:Alzheimer Disease / Q000523:psychology / Q000534:rehabilitation*; D017028:Caregivers / Q000523:psychology; D017281:Cost of Illness; D005260:Female; D006801:Humans; D008297:Male; D011939:Mental Recall