A multicenter study of the predictive value of crescents in IgA nephropathy

Mark Haas, Jacobien C. Verhave, Zhi Hong Liu, Charles E. Alpers, Jonathan Barratt, Jan U. Becker, Daniel Cattran, H. Terence Cook, Rosanna Coppo, John Feehally, Antonello Pani, Agnieszka Perkowska-Ptasinska, Ian S.D. Roberts, Maria Fernanda Soares, Hernan Trimarchi, Suxia Wang, Yukio Yuzawa, Hong Zhang, Stéphan Troyanov, Ritsuko Katafuchi