● Jian W,Zhu L,Dong X (2001). New approach to phylogenetic analysis of the genus Bifidobacterium based on partial HSP60 gene sequences. Int. J. Syst. Evol. Microbiol.51, 1633-8. ● Jian W,Dong X (2002). Transfer of Bifidobacterium inopinatum and Bifidobacterium denticolens to Scardovia inopinata gen. nov., comb. nov., and Parascardovia denticolens gen. nov., comb. nov., respectively. Int. J. Syst. Evol. Microbiol.52, 809-12.