Joyce J.C. Kroot, Erwin H.J.M. Kemna, Sukhvinder S. Bansal, Mark Busbridge, Natascia Campostrini, Domenico Girelli, Robert C. Hider, Vasiliki Koliaraki, Avgi Mamalaki, Gordana Olbina, Naohisa Tomosugi, Chris Tselepis, Douglas G. Ward, Tomas Ganz, Jan C.M. Hendriks, Dorine W. Swinkels. Results of the first international round robin for the quantification of urinary and plasma hepcidin assays: need for standardization. Haematologica 2009;94(12):1748-1752; https://doi.org/10.3324/haematol.2009.010322.