Erratum to: Pediatr Nephrol

DOI: 10.1007/s00467-014-2752-4

The name of the first author was rendered wrongly; his correct name is Osama Y. Safdar. The same error occurred in a previous erratum to this article (DOI: 10.1007/s00467-014-2783-x), which corrected the name of the fourth author, Neil Sebire, and the wording of the legend of Fig. 2 (“Renal biopsy with glomeruli stained with silver stain”).