Recommendations for the use of botulinum toxin type A in the management of cerebral palsy. - Graham,H.K.; Aoki,K.R.; Autti-Rämö,I.; Boyd,R.N.; Delgado,M.R.; Gaebler-Spira,D.J.; Gormley,M.E.; Guyer,B.M.; Heinen,F.; Holton,A.F.; Matthews,D.; Molenaers,G.; et al. (Gait Posture, 2000)