Eken, A., S. Erdogan, Y. Kuyucu, G. Seydaoglu, S. Polat, and N. Satar. “Immunohistochemical and Electron Microscopic Examination of Cajal Cells in Ureteropelvic Junction Obstruction”. Canadian Urological Association Journal, vol. 7, no. 5-6, May 2013, pp. e311-6, doi:10.5489/cuaj.1247.