Gonzalez-Lopez L, Gamez-Nava JI, Vega-Lopez A, Rodriguez-Jimenez NA, Gonzalez-Montoya N, Aguilar-Chavez E, Alcaraz-Lopez MF, Rocha-Muñoz AD, Castro-Lizano N, Morales-Romero J, Salazar-Paramo M, Suarez-Almazor ME.
J Rheumatol. 2012 Feb;39(2):247-53. Epub 2011 Dec 15.