An RCT of a decision aid to support informed choices about taking aspirin to prevent colorectal cancer and other chronic diseases: a study protocol for the SITA (Should I Take Aspi... oleh Shakira Milton, Jennifer McIntosh, Finlay Macrae, Patty Chondros, Lyndal Trevena, Mark Jenkins, Fiona M. Walter, Natalie Taylor, Lucy Boyd, Sibel Saya, Napin Karnchanachari, Kitty Novy, Carmody Forbes, Javiera Martinez Gutierrez, Kate Broun, Sara Whitburn, Sarah McGill, George Fishman, Julie Marker, Max Shub, Jon Emery