Serum β-hCG Combined with Traditional Tumor Markers Improves Detection Efficacy and Prognostic Prediction in Cholangiocarcinoma. - Kongsintaweesuk, Suppakrit; Pongking, Thatsanapong; Tunbenjasiri, Keerapach; Tanasuka, Pakornkiat; Roytrakul, Sittiruk; Onsurathum, Sudarat; Pairojkul, Chawalit; Intuyod, Kitti; Luvira, Vor; Pinlaor, Somchai; Blair, David; Pinlaor, Porntip (International Journal of Molecular Sciences, 2026)