K. Tsunoda, M. Onishi, S. Miura, and H. Amano, “Effectiveness of Combined Anti-programmed Death-ligand 1 Therapy and Radiotherapy for Metastatic Merkel Cell Carcinoma: Two Case Reports”, Acta Derm Venereol, vol. 100, no. 15, pp. 1–2, Aug. 2020.