Tanaka, Yusuke, Toshihiro Hara, Ryoichi Waki, and Shunji Nagata. 2012. “Regional Differences in the Components of Luminal Water from Rat Gastrointestinal Tract and Comparison With Other Species”. Journal of Pharmacy & Pharmaceutical Sciences 15 (4):510-18. https://doi.org/10.18433/J3F602.