Association of mitochondrial DNA content in peripheral blood with cancer-related fatigue and chemotherapy-related cognitive impairment in early-stage breast cancer patients: a prospective cohort study. - Chae JW; Chua PS; Ng T; Yeo AHL; Shwe M; Gan YX; Dorajoo S; Foo KM; Loh KW; Koo SL; Chay WY; Tan TJY; et al. (Breast cancer research and treatment, 2018)