Vavilova, V P [Current possibilities for prevention of respiratory infections at preschool educational establishments]. [electronic resource] - Vestnik otorinolaringologii 2010 - 68-70 p. digital Publication Type: Comparative Study; Journal Article ISSN: 0042-4668 Subjects--Topical Terms: ChildChild, PreschoolDisease OutbreaksHumansInfluenza, Human--epidemiologySeawater