Erratum
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In manuscript “Computed tomography evaluation of renal artery morphometry in adults. *The impact of age and gender*” Saudi Med J 2020; Vol. 41 (1): 34-37 doi: 10.15537/smj.2020.1.24795. In the Results Section the measurement unit should appeared as: centimetre (cm)

In manuscript “Surgical and oncological outcome after laparoscopic versus open nephroureterectomy for non-metastatic, upper-tract urothelial carcinoma. *A single-centre experience*” Saudi Med J 2020; Vol. 41 (1): 25-33; doi: 10.15537/smj.2020.1.24780. Discussion Section and **Table 2** should appeared as: Similarly, 3 of 5 patients developed recurrences in the ureterectomy stumps, which was managed with bladder cuff excision.

View this table:
[Table 2](http://smj.org.sa/content/41/5/554/T1)

Table 2 
Intra- and perioperative comparative analysis using nonparametric (Mann-Whitney) test.

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