Eltayeb, A.A., Ibrahim, N.H., Moeen, S.M. and Imam, H.M. 2017. The use of botulinum toxin in children with chronic constipation. International Surgery Journal. 4, 6 (May 2017), 1845–1849. DOI:https://doi.org/10.18203/2349-2902.isj20172388.