title: Repeat renal biopsy in lupus nephritis - unnecessary harm and risk of complications or important diagnostic tool with clinical consequences?
authors.affiliation: Department of Connective Tissue Diseases, National Institute of Geriatrics, Rheumatology and Rehabilitation, Warsaw, Poland.
authors.forename: Ewa
authors.initials: E
authors.lastname: Haładyj
authors.affiliation: Department of Autoimmune Diseases, Hospital Clinic, Barcelona, Catalonia, Spain.
authors.forename: Ricard
authors.initials: R
authors.lastname: Cervera