Bink K, Haralambieva E, Kremer M, Ott G, Beham-Schmid C, de Leval L, Peh SC, Laeng HR, Jütting U, Hutzler P, Quintanilla-Martinez L, Fend F. Primary extramedullary plasmacytoma: similarities with and differences from multiple myeloma revealed by interphase cytogenetics. Haematologica 2008; 93(4):623-626; https://doi.org/10.3324/haematol.12005.