title: Disease clusters in older adults: rationale and need for investigation.
authors.forename: Alessandra
authors.initials: A
authors.lastname: Marengoni
authors.forename: Laura
authors.initials: L
authors.lastname: Fratiglioni
mesh_terms: D000368:Aged; D035843:Biomedical Research; D016000:Cluster Analysis; D015897:Comorbidity; D005853:Geriatrics; D006801:Humans