Dignity therapy intervention fidelity: a cross-sectional descriptive study with older adult outpatients with cancer oleh Tasha M. Schoppee, Lisa Scarton, Susan Bluck, Yingwei Yao, Gail Keenan, Virginia Samuels, George Fitchett, George Handzo, Harvey M. Chochinov, Linda L. Emanuel, Diana J. Wilkie