Perri, F., Bellini, M., Portincasa, P., Parodi, A., Bonazzi, P., Marzio, L., . . . Usai-Satta, P. (2010). (13)C-octanoic acid breath test (OBT) with a new test meal (EXPIROGer): Toward standardization for testing gastric emptying of solids. Digestive and liver disease, 42(8), 549. https://doi.org/10.1016/j.dld.2010.01.001
Chicago Style (17th ed.) CitationPerri, Francesco, et al. "(13)C-octanoic Acid Breath Test (OBT) with a New Test Meal (EXPIROGer): Toward Standardization for Testing Gastric Emptying of Solids." Digestive and Liver Disease 42, no. 8 (2010): 549. https://doi.org/10.1016/j.dld.2010.01.001.
MLA (9th ed.) CitationPerri, Francesco, et al. "(13)C-octanoic Acid Breath Test (OBT) with a New Test Meal (EXPIROGer): Toward Standardization for Testing Gastric Emptying of Solids." Digestive and Liver Disease, vol. 42, no. 8, 2010, p. 549, https://doi.org/10.1016/j.dld.2010.01.001.