Puig P, Urgell E, Capellá G, Villanueva A, Grau M, Sancho F J, Pujol J, Lluís F, González-Sastre F, Mora J
Department of Clinical Biochemistry, Hospital de la Santa Creu i Sant Pau, Antoni M. Claret, Barcelona, Spain.
Lab Invest. 1999 May;79(5):617-8.