P. Sirisreetreerux, P. Jenjitranant, C. Hongyok, R. Pornkul, and W. Viseshsindh, “Correlation Between Posterior/Anterior Urethral Ratio from Voidingcystourethrography and Prognosis of Posterior Urethral Vales”, Rama Med J, vol. 39, no. 1, pp. 62–71, Mar. 2016.