CASR and nephrolithiasis: In the article, “Genetic polymorphism (rs6776158) in CaSR gene is associated with risk of nephrolithiasis in Chinese population”,[1] which appears in Volume 97, Issue 45 of Medicine, affiliation a should be “Department of Urology, Yangzhou No.1 People's Hospital, Affiliated Hospital of Yangzhou University, Yangzhou, China.”