SIDHU, A SNAIR, S S1957-01-012009-05-271957-01-012009-05-271957-01-01SIDHU AS, NAIR SS. Sample survey on the incidence of infectious hepatitis in Delhi (1955-56). Indian Journal of Medical Research. 1957 Jan; 45(Suppl.): 31-47http://imsear.searo.who.int/handle/123456789/25518engHepatitis A --epidemiologySample survey on the incidence of infectious hepatitis in Delhi (1955-56).Journal Article