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Triage X (トリアージX(イクス), Toriāji Ikusu) is a Japanese manga series written and illustrated by Shōji Satō. It has been serialized in Fujimi Shobo's shōnen manga magazine Monthly Dragon Age since 2009 and collected in 31 tankōbon volumes so far, as of June 2026. Yen Press publishes the manga in North America and has released 28 volumes as of August 26, 2025.