Division of Gastroenterology;
Allegheny Health Network;
Pittsburgh;
PA 15212;
United States;
Allegheny Singer Research Institute;
Allegheny Health Network;
Pittsburgh;
PA 15212;
United States;
Division of Radiation Oncology;
Allegheny Health Network Cancer Institute;
Pittsburgh;
PA 15212;
United States;
Colorectal; cancer; Early-onset; colorectal; cancer; Colorectal; cancer; screening; Epidemiology; analysis; Colorectal; neoplasm; Average-risk; screening;