Wang C, Zhou Y-L, Cai H, Cheng X-Q, Zhang W, Kang W-Y, Qin X-Z, Duan M-H, Han H-J, Cao X-X, Zhou D-B, Li J. Markedly elevated serum total N-terminal propeptide of type I collagen is a novel marker for the diagnosis and follow up of patients with POEMS syndrome. Haematologica 2014; 99(6):e78-e80; https://doi.org/10.3324/haematol.2013.102962.