Characterization of the CD200 receptor family in mice and humans and their interactions with CD200. by Wright, G, Cherwinski, H, Foster-Cuevas, M, Brooke, G, Puklavec, M, Bigler, M, Song, Y, Jenmalm, M, Gorman, D, McClanahan, T, Liu, MR, Brown, M, Sedgwick, J, Phillips, J, Barclay, N