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 ...

ACUTE renal failure in patients with multiple myeloma who have had intravenous urography has had increased emphasis over the last few years. 1–5 A direct cause- and-effect relation between the acute ...