Title : Genomic sequences of six botulinum neurotoxin-producing strains representing three clostridial species illustrate the mobility and diversity of botulinum neurotoxin genes - Smith_2015_Infect.Genet.Evol_30_102
Title : Analysis of the neurotoxin complex genes in Clostridium botulinum A1-A4 and B1 strains: BoNT\/A3, \/Ba4 and \/B1 clusters are located within plasmids - Smith_2007_PLoS.One_2_e1271