Acceptability, fidelity and trial experience of four intervention components to support medication adherence in women with breast cancer: A process evaluation protocol for a pilot fractional factorial trial

Sophie M.C. Green^*, Louise H. Hall, Nikki Rousseau, David P. French, Christopher D. Graham, Michelle Collinson, Ellen Mason, Hollie Wilkes, Daniel Howdon, Robbie Foy, Rebecca Walwyn, Jane Clark, Catherine Parbutt, Erin Raine, Rachel Ellison, Jacqueline Buxton, Sally J.L. Moore, Galina Velikova, Amanda Farrin, Samuel G. Smith