Primary respiratory disease in patients with systemic lupus erythematosus: data from the Spanish rheumatology society lupus registry (RELESSER) cohort gan Javier Narváez, Helena Borrell, Fernando Sánchez-Alonso, Iñigo Rúa-Figueroa, Francisco Javier López-Longo, María Galindo-Izquierdo, Jaime Calvo-Alén, Antonio Fernández-Nebro, Alejandro Olivé, José Luis Andreu, Víctor Martínez-Taboada, Joan Miquel Nolla, José María Pego-Reigosa, on behalf of the RELESSER Study Group

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