IN 1955 Benirschke and Brown 1 reported extensively on the occurrence of congenital anomalies in association with the absence of one of the two umbilical arteries. This study, together with previous ...
Retrograde pyelography is a procedure commonly used by urologists involving X-ray imaging to visualize the kidneys, bladder and ureters. It involves the insertion of a cystoscope into the urinary ...
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