Predictive value of integrated 18F-FDG PET/MRI in the early response to nivolumab in patients with previously treated non-small cell lung cancer ================================================================================================================================================ * Yukihiro Umeda * Miwa Morikawa * Masaki Anzai * Shingo Ameshima * Maiko Kadowaki * Yuko Waseda * Hiroko Shigemi * Tetsuya Tsujikawa * Yasushi Kiyono * Hidehiko Okazawa * Tamotsu Ishizuka