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. Author manuscript; available in PMC: 2020 Jan 1.
Published in final edited form as: Prev Med. 2018 Dec 1;118:332–335. doi: 10.1016/j.ypmed.2018.11.020

Figure 1.

Figure 1.

Study flow diagram showing screening initiation and cross over after three outreach mailings among participants invited for FIT (A; n=2,400) and colonoscopy (B; n=2,400), Parkland Health & Hospital System, 2013 – 2016