title: When should I use an insect repellent? Which one is best?
mesh_terms: D000818:Animals; D001688:Biological Products; D009033:Culicidae; D015438:Health Behavior; D006801:Humans; D007299:Insect Bites and Stings / Q000517:prevention & control*; D007302:Insect Repellents / Q000008:administration & dosage* / Q000145:classification*
chemical_list: D001688:Biological Products; D007302:Insect Repellents