How are adults with intellectual and/or developmental disabilities represented, included and engaged in cancer research: A scoping review protocol - Rebecca L. W. Hansford; Sandra Halliday; Nicole Bobbette; Laura Mullins; Christina Godfrey; Anna Przednowek; Preeyaporn Srasuebkul; Martin McMahon; Alyson L. Mahar (PLoS ONE, 2026)