[13C]-pantoprazole breath test to predict CYP2C19 phenotype and efficacy of a proton pump inhibitor, lansoprazole. - FURUTA, T.; KODAIRA, C.; NISHINO, M.; YAMADE, M.; SUGIMOTO, M.; IKUMA, M.; HISHIDA, A.; WATANABE, H.; UMEMURA, K. (Alimentary Pharmacology & Therapeutics, 2009)