If you're in your mid-40s and haven't had your colon checked, it might be time.
원문출처 : https://www.cnn.com/2018/05/30/health/colon-rectal-cancer-screening-guidelines-study/index.html
원문출처 : https://www.cnn.com/2018/05/30/health/colon-rectal-cancer-screening-guidelines-study/index.html