Additional file 1: of Subclinical and clinical atherosclerosis in rheumatoid arthritis: results from the 3-year, multicentre, prospective, observational GIRRCS (Gruppo Italiano di Ricerca in Reumatologia Clinica e Sperimentale) study
STROBE 2007 (v4) checklist of items to be included in reports of observational studies in epidemiology* (DOC 96 kb)