Somasekhar, GSharma, K B1981-09-012009-05-271981-09-012009-05-271981-09-01Somasekhar G, Sharma KB. A complementary phage typing scheme for Vi-negative strains of Salmonella typhi. Indian Journal of Medical Research. 1981 Sep; 74(): 337-44http://imsear.searo.who.int/handle/123456789/25593engBacteriophage Typing --methodsSalmonella PhagesSalmonella typhi --classificationA complementary phage typing scheme for Vi-negative strains of Salmonella typhi.Journal Article