1. Gorton E, Whitfield H. Renal calculi in pregnancy BJU 1997;80 (Suppl l):4-9.
2. Kroovand Rl. Stones in pregnancy. In: Coe FL, Favers MJ, Pak CYC, Park JH, Preminger GM (Eds). Kidney stones: Medical and surgical management. Lippincott-Raven Publishes Philadelphia 1996;1059-64.