Abstract

References
1.
Felix
W.
(1912 ) In: Human Embryology. Edited by
Keibel
Mall
. Philadelphia; 2 , 822 .
2.
Graves
F. T.
(1954 ) Brit. J. Surg. , 42 , 132 .
3.
Graves
F. T.
(1956 ) J. Anat., Lond. , 90 , 553 .
4.
Ball
W. G.
Evans
G.
(1932 ) Diseases of the Kidney. London.
5.
Douville
E.
Hollinshead
W. H.
(1955 ) J. Urol. , 73 , 906 .
