1 Department of Pediatric Nephrology, Dr Sami Ulus Maternity and Child Health and Diseases Training and Research Hospital, Ankara, Turkey. [email protected].
2 Department of Pediatric Nephrology, Dr Sami Ulus Maternity and Child Health and Diseases Training and Research Hospital, Ankara, Turkey.
3 Department of Pediatric Nephrology, 19 Mayis University Medical School, Samsun, Turkey.
4 Department of Biochemistry, Yıldırım Beyazıt University Medical School, Ankara, Turkey.
5 Department of Biostatistics, Ankara University Medical School, Ankara, Turkey.
Owing to an error in typesetting, the name of the author Atilla Halil Elhan was rendered wrongly. The original publication has now been corrected in this respect.