Clinical significance of plasma-free amino acids and tryptophan metabolites in patients with non-small cell lung cancer receiving PD-1 inhibitor: a pilot cohort study for developing a prognostic multivariate model
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* Koichi Azuma
* Huihui Xiang
* Tomoyuki Tagami
* Rika Kasajima
* Yumiko Kato
* Sachise Karakawa
* Shinya Kikuchi
* Akira Imaizumi
* Norikazu Matsuo
* Hidenobu Ishii
* Takaaki Tokito
* Akihiko Kawahara
* Kenta Murotani
* Tetsuro Sasada
* Yohei Miyagi
* Tomoaki Hoshino