Correction: CD40 Gene Silencing Reduces the Progression of Experimental Lupus Nephritis Modulating Local Milieu and Systemic Mechanisms. - Èlia Ripoll; Ana Merino; Montse Goma; Josep M. Aran; Nuria Bolaños; Laura de Ramon; Immaculada Herrero-Fresneda; Oriol Bestard; Josep M. Cruzado; Josep M. Grinyó; Juan Torras (PLoS ONE, 2013)