%0 Journal Article %B J Gen Intern Med %D 2008 %G eng %N 10 %P 1547-54 %R 10.1007/s11606-008-0626-9 %T Older patients perceptions of "unnecessary" tests and referrals: a national survey of Medicare beneficiaries. %V 23 %1 https://www.ncbi.nlm.nih.gov/pubmed/18592324 %8 10/2008