2Kubba AK, Young M. The illness of franz schubert: a case of misdiagnosis[J]. J R Coll Surg Edinb, 1997,42(4):283.
3Nsutebu EF, Ndumbe PM, Koulla S. The increase in occurrence of typhoid fever in Cameroon:overdiagnosis to misuse of the widal test? [J].Trans R Soc Trop Med Hyg, 2002,96(1):64.
4Seebaran AR, Coovadia YM, Bhana RH, et al. Typhoid fever in the adult and paediatric indian population of[J]. S Afr Med J, 1990,77(1):14.
