Author,Title,Journal,ISSN,Publisher,Date,Volume,Number,Page,URL,URL(DOI) Ahmad Y. Abuhelwa and David J. R. Foster and Richard N. Upton,A Quantitative Review and Meta-Models of the Variability and Factors Affecting Oral Drug Absorption—Part I: Gastrointestinal pH,The AAPS Journal,1550-7416,Springer Science and Business Media LLC,2016-08-05,18,5,1309-1321,https://cir.nii.ac.jp/crid/1360011145626491136,https://doi.org/10.1208/s12248-016-9952-8