Complications of Sine Surgery in Elderly Japanese Patients: Implications for Future of World Population Aging

by Motoyuki Umekawa, Keisuke Takai, Makoto Taniguchi
Published 2019-12-01

Isolated intracranial mass lesion near the foramen of Luschka: An unusual presentation of granulomatosis with polyangiitis

by Takeru Hirata, Motoyuki Umekawa, Katsuya Sato, Gakushi Yoshikawa
Published 2021-09-01