title: [The olfactometer O-21 for comparative trials of repellents].
mesh_terms: D000818:Animals; D009033:Culicidae; D007302:Insect Repellents
chemical_list: D007302:Insect Repellents
vernacular_title: Ol'faktometr O-21 dlia sravnitel'nykh ispytaniĭ repellentov.