title: Nicotine's role in smoking: an analysis of nicotine regulation.
mesh_terms: D001682:Biological Availability; D004305:Dose-Response Relationship, Drug; D006706:Homeostasis; D006801:Humans; D009538:Nicotine / Q000008:administration & dosage / Q000378:metabolism*; D012907:Smoking
chemical_list: D009538:Nicotine