Errata 254 Urology Journal Vol 4 No 4 Autumn 2007 Errata In volume 3, number 4 of the Urology Journal, the following error occurred: On page 200, reference 2, the year of publication should have read 1997. In volume 4, number 2 of the Urology Journal, the following error occurred: On page 105, the name of the second author, Fatemeh Khatami should have read Farideh Khatami. In volume 4, number 3 of the Urology Journal, the following errors occurred: On page 150, reference 2 is not complete. The complete reference is: Lingeman JE, Matlaga BR, Evan AP. Surgical management of upper urinary tract calculi. In: Wein AJ, Kavoussi LR, Novick AC, Partin AW, Peters CA, editors. Campbell-Walsh urology. 9th ed. Philadelphia: Saunders; 2007. p. 1497-8. On page 159, the name of the third author, Mohammad Reza Moradi should have read Mahmoud Reza Moradi. On page 164, the dates of receiving and acceptance of the paper are not mentioned. These dates were as follows: Received February 2007 Accepted July 2007 We regret the above errors. Urol J. 2007;4:254. www.uj.unrc.ir