Clinical Usefulness of Bright White Light Therapy for Depressive Symptoms in Cancer Survivors: Results from a Series of Personalized (N-of-1) Trials oleh Ian M. Kronish, Ying Kuen Cheung, Jacob Julian, Faith Parsons, Jenny Lee, Sunmoo Yoon, Heidis Valdimarsdottir, Paige Green, Jerry Suls, Dawn L. Hershman, Karina W. Davidson