An outbreak of gastroenteritis from a non-chlorinated community water supply
M Kuusi, P Klemets, I Miettinen, I Laaksonen, H Sarkkinen, M L Hänninen, H Rautelin, E Kela, J P Nuorti
Journal of Epidemiology & Community Health Apr 2004, 58 (4) 273-277; DOI: 10.1136/jech.2003.009928