Voriconazole‐photoinduced polyomavirus‐negative Merkel cell carcinoma. Issue 8 (12th March 2019) - Miyazawa, Hidehiko; Shimauchi, Takatoshi; Hashizume, Hideo; Masuda, Yurika; Aoshima, Masahiro; Ito, Taisuke; Tokura, Yoshiki