USA Today (May 9, 2011)

Source: USA Today (Monday May 9, 2011)
Permalink: http://yourlife.usatoday.com/health/medical/menshealth/story/2011/05/Study-Many-elderly-get-colon-screening-too-often---/46984516/1?sms_ss=twitter&at_xt=4dc85aad5bcceae2,0