Bone Morphogenetic Protein (BMP)-9: a hepatic cytokine with potentially tumour-suppressive function in hepatocellular carcinoma (HCC) - Breitkopf-Heinlein, K; Araos, J Henriquez; Cai, C; Zhou, Q; Zheng, Y; Gaitantzi, H; Itzel, T; Teufel, A; Hawinkels, L; Birgin, E; Ebert, M; Rabahri, N (Zeitschrift für Gastroenterologie, 2022)