Amide proton transfer MRI differentiates between progressive multifocal leukoencephalopathy and malignant brain tumors: a pilot study. - Hirofumi Koike; Minoru Morikawa; Hideki Ishimaru; Reiko Ideguchi; Masataka Uetani; Takeshi Hiu; Takayuki Matsuo; Mitsuharu Miyoshi (BMC Medical Imaging, 2022)