title: The negligible systemic availability of retinoids with multiple and excessive topical application of isotretinoin.
authors.forename: W K
authors.initials: WK
authors.lastname: Stiefel
mesh_terms: D000279:Administration, Cutaneous; D001682:Biological Availability; D003309:Copyright / Q000331:legislation & jurisprudence; D004345:Drug Industry / Q000331:legislation & jurisprudence*; D006801:Humans; D015474:Isotretinoin / Q000008:administration & dosage*; D012176:Retinoids / Q000493:pharmacokinetics*; D014481:United States
chemical_list: D012176:Retinoids; D015474:Isotretinoin