Granulomatosis with poliangiitis mimicking testicular torsion Laura Aizpiri Antoñana; José Luis Bauzá Quetglas; Elena Prados Pérez; Karel López Brito; Priscila Benito García; Enrique Carmelo Pieras Ayala;

Laboratory Diagnosis of ANCA-Associated Vasculitis (AAV) Using a Combination of Immunofluorescence Test (IIFT) and Line Immunoassay (LIA): Single-Centre Report From India Rajni Chauhan; Dharmendra Jain; Aseem Kumar Tiwari; Pranav Dorwal; Vimarsh Raina; Shoma Paul Nandi;

RESER/NVAN: Spanish Registry of patients with ANCA- associated vasculitis: objectives and methodology Susana Romero-Yuste; Manuel Macía; Marta Domínguez-Álvaro; Antonio Fernández-Nebro; Miquel Blasco; Javier Narváez; Gema Fernández; Íñigo Rúa-Figueroa; Desirée Luis-Rodríguez; Beatriz Ventosa;