Development of a quail embryo model for the detection of botulinum toxinBuhr, R. J⋅Bourassa, D. V⋅Cox, N. A⋅Richardson, Larry J⋅Kelley, Lynda C⋅Phillips, R. W⋅Richardson, L. J⋅COX JR NELSON A⋅Phillips, Robert W⋅Kelley, L. C and Wilson, J. L (Inventors).US 8246931. (Issued 08/21/2012)