In Vivo Multiplexed Analysis of Aminopeptidase Activities by Hyperpolarized Molecular Probes for Tumor Diagnostic Applications - Hiroyuki Yatabe; Keita Saito; Ayumi Koike; Yoichi Takakusagi; Abdelazim E. Elhelaly; Fuminori Hyodo; Masayuki Matsuo; Wataru Mizukami; Maki Sugaya; Tsuyoshi Osawa; Murali C. Krishna; Kazutoshi Yamamoto; et al. (Journal of the American Chemical Society, 2026)