http://www.mayoclinic.org/colon-cancer-screening/expert-answers/faq-20057826 
 
Please review the link above as reference, you can also use your own reference but please make sure to add it under "References" of the paper.
 
After reviewing the link, please create a letter (350 words) to Primary Care/Referring Doctors regarding the new standard of carefor Screeing Colonoscopy.
 
Note: The letter is from a Gastroenterology Clinic, writing a letter to the Referring Doctors who sent patients/referred their patient.