Watanasri, S2009-05-272009-05-271988-07-01Watanasri S. Epidemiological methods in the study of nosocomial infections. Journal of the Medical Association of Thailand. 1988 Jul; 71 Suppl 3(): 46-7http://imsear.searo.who.int/handle/123456789/41492Chotmaihet Thangphaet.engCross Infection --epidemiologyData CollectionEpidemiologic MethodsHumansEpidemiological methods in the study of nosocomial infections.Journal Article