2439716 BTX-B botulinum toxin type B 27 2439718 BTX-B botulinum toxin B 17 2439720 BTX-B batrachotoxinin-A 20-alpha-benzoate 7 2439721 BTX-B Brevetoxin-B 4 2439722 BTX-B BTX type B 4 2439717 BTX-B 3H-batrachotoxinin-A benzoate 2 2439723 BTX-B BACKGROUND: Optimum dose ratios of rimabotulinumtoxinB 1 2439719 BTX-B bactrachotoxin A 20-alpha-benzoate binding 1