● Tyzzer EE (1917). A Fatal Disease of the Japanese Waltzing Mouse caused by a Spore-Bearing Bacillus (Bacillus Piliformis, N. SP.). J Med Res37, 307-338.5. ● Duncan AJ,Carman RJ,Olsen GJ,Wilson KH (1993). Assignment of the agent of Tyzzer's disease to Clostridium piliforme comb. nov. on the basis of 16S rRNA sequence analysis. Int. J. Syst. Bacteriol.43, 314-8.