Siblings of centenarians live longer.
D000367:Age Factors; D000368:Aged; D000369:Aged, 80 and over / Q000502:physiology*; D000375:Aging / Q000235:genetics*; D015331:Cohort Studies; D005260:Female; D006801:Humans; D008136:Longevity / Q000235:genetics*; D008297:Male; D008404:Massachusetts; D012042:Registries; D012737:Sex Factors; D016019:Survival Analysis; D015996:Survival Rate