Growth inhibitory effect of β-eudesmol on cholangiocarcinoma cells and its potential suppressive effect on heme oxygenase-1 production, STAT1/3 activation, and NF-κB downregulation - Mathema, V B; Chaijaroenkul, W; Karbwang, J; Na-Bangchang, K (Clin Exp Pharmacol Physiol, 2017)