Comment on

• Disentangling the roles of disability and morbidity in survival to exceptional old age.

  Terry DF, Sebastiani P, Andersen SL, Perls TT. Terry DF, et al. Arch Intern Med. 2008 Feb 11;168(3):277-83. doi: 10.1001/archinternmed.2007.75. Arch Intern Med. 2008. PMID: 18268168 Free PMC article.
• Exceptional longevity in men: modifiable factors associated with survival and function to age 90 years.

  Yates LB, Djoussé L, Kurth T, Buring JE, Gaziano JM. Yates LB, et al. Arch Intern Med. 2008 Feb 11;168(3):284-90. doi: 10.1001/archinternmed.2007.77. Arch Intern Med. 2008. PMID: 18268169