Huang, Y.-C., Wei, S.-H., Wang, H.-K. and Lieu, F.-K. (2009) “Ultrasonographic guided botulinum toxin type A treatment for plantar fasciitis: an outcome-based investigation for treating pain and gait changes”., Journal of Rehabilitation Medicine, 42(2), pp. 136–140. doi: 10.2340/16501977-0491.