HOBSON, D Clinical, epidemiological, and virological aspects of echovirus type 9 infection in Sheffield, 1960. [electronic resource] - British journal of preventive & social medicine Apr 1962 - 84-92 p. digital Publication Type: Journal Article ISSN: 0007-1242 Standard No.: 10.1136/jech.16.2.84 doi Subjects--Topical Terms: Echovirus 9HumansVirus Diseases