The objective of this study was to evaluate the prevalence, clinicopathologic features, and outcome of renal involvement in a large cohort of patients with primary antiphospholipid syndrome (PAPS).
Clinical Immunology Unit, Department of Medicine, Azienda Ospedaliera Ospedale San Carlo Borromeo, Via Pio Secondo, 3, 20153 Milano, Italy. renatoalberto.sinico@fastwebnet.it