title: Saliva-plasma drug concentration ratios during absorption: theoretical considerations and pharmacokinetic implications.
mesh_terms: D000818:Animals; D006801:Humans; D007408:Intestinal Absorption; D007700:Kinetics; D008954:Models, Biological; D004364:Pharmaceutical Preparations / Q000097:blood / Q000378:metabolism*; D012463:Saliva / Q000378:metabolism*
chemical_list: D004364:Pharmaceutical Preparations