Durland, L. (2020). Telephone-Based, Clinician-Guided Self-Help Cognitive Behavioral Therapy for Depression in Parkinson’s Disease (dPD): The Responder Cases of "Alice" and "Carl," and the Nonresponder Cases of "Ethan" and "Gary". Pragmatic Case Studies in Psychotherapy, 16(1), 1–103. https://doi.org/10.14713/pcsp.v16i1.2068