title: Dependence on nicotine chewing gum.
mesh_terms: D002638:Chewing Gum; D006801:Humans; D009538:Nicotine / Q000008:administration & dosage; D000074606:Smoking Prevention; D019966:Substance-Related Disorders / Q000209:etiology*
chemical_list: D002638:Chewing Gum; D009538:Nicotine