HinmannF., KutzmannA. A.: Congenital valvular obstruction of the posterior urethra. J. Urol., 14: 71: 1925.
14.
KnoxJ., SpruntJ.: Congenital obstruction of the posterior urethra; report of a case in a boy aged five jears. Trans. Amer. Ped. Soc., 24: 49: 1912.
15.
MilanoL.: Contributo alla conoscenza delle malformazioni uretrali fetali di importanza ostetrica. Quad. Clin. Ost. Cince., 7: 661: 1952.
16.
MisuracaS.: Contributo allo studio delle malformazioni dell'uretra. Urologia, 18: 350: 1951.
17.
MonieI. W., NelsonM. N., EvansH. M.: Abnormalities of the urinary system of rat embryos resulting from natural pteroylglutamic acid deficiency. Anat. Rec., 120: 119: 1954.
18.
OrsiniM. W.: The piebald Hamster: a mutation showing growth retardation and urino-genital abnormalities. J. Hered., 43: 37: 1952.
19.
ReneB.: La dilatation congénitale des voies urinaires supérieures. J. d'Urol., 21: 4: 289; 5: 413: 1926.
20.
TermierA.: Interprétation embryogénique des anomalies de l'urètre. Le Dauphine méd., 2: 217: 1906.
21.
UteauA.: Rétrécissement congénitaux multiples de l'uretre avec complications. J. d'Uro!., 2: 1914.
