1. Ureteric pressure-flow studies in difficult diagnostic problems;Marshall;Journal of Urology,1975
2. Methods of assessing obstruction in dilated ureters;Whitaker;British Journal of Urology,1973
3. The ureter in posterior urethral valves;Whitaker;British Journal of Urology,1973
4. Diagnosis of obstruction in dilated ureters;Whitaker;Annals of the Royal College of Surgeons of England,1973
5. Urodynamic assessment of ureteral obstruction in retroperitoneal fibrosis;Whitaker;Journal of Urology,1975