title: INTRODUCTION.
authors.forename: A Claudio
authors.initials: AC
authors.lastname: Bosio
authors.forename: Lorenzo
authors.initials: L
authors.lastname: Morelli
mesh_terms: D000368:Aged; D000369:Aged, 80 and over; D000375:Aging; D005060:Europe; D005260:Female; D015577:Geriatric Assessment; D005853:Geriatrics / Q000639:trends*; D006302:Health Services Research / Q000639:trends*; D006299:Health Services for the Aged / Q000639:trends*; D006801:Humans; D007558:Italy; D008136:Longevity; D008297:Male; D012944:Social Support