An App-Based Behavioral Support Intervention Promoting Physical Activity (APPROACH) in Patients Diagnosed With Breast, Prostate, or Colorectal Cancer: Protocol for a Randomized Controlled Trial.

Fiona Kennedy, Sue L Smith, Rebecca J Beeken, Caroline Buck, Leanne Shearsmith, Hannah Truscott, Nicholas Counsell, Chloe Thomas, Anna Roberts, Diana M Greenfield, Henry Ww Potts, Nicholas Latimer, Ed Lowther, Lee Smith, Rosie Stevens