References
- Coe F L, Park J H, Lindheimer M D. Nephrolithiasis during pregnancy. N Engl J Med 1978; 298: 324–9
- Ulmsten U. Abnormal ureteral peristatics during pregnancy. Acta Obstet Gynecol Scand 1977; 56: 177–201
- Erwin B C, Carroll B A, Sommer F O. Renal calic: the role of ultrasound in initial evaluation. Radiology 1974; 152: 174–81
- Hill M C, Rich J I, Mardial J G, et al. Sonography vs excretory urography in acute flank pain. AJR 1985; 144: 1235–40
- Persson P A, Ulmsten U. Ultrasonic investigation of the urinary tract during pregnancy. Recent Advances in Ultrasound Diagnosis, A Kurjak. Excerpta Medica, Amsterdam 1978; 139–46