title: Biomembrane permeation and stereochemistry.
authors.forename: Y W
authors.initials: YW
authors.lastname: Chien
authors.forename: M
authors.initials: M
authors.lastname: Nair
mesh_terms: D000818:Animals; D002463:Cell Membrane Permeability / Q000502:physiology*; D006801:Humans; D066298:In Vitro Techniques; D016912:Levonorgestrel / Q000493:pharmacokinetics; D008432:Mathematical Computing; D009092:Mucous Membrane / Q000378:metabolism; D009644:Norgestrel / Q000493:pharmacokinetics*; D011817:Rabbits; D012869:Skin Absorption / Q000502:physiology; D013237:Stereoisomerism
chemical_list: D009644:Norgestrel; D016912:Levonorgestrel