title: Antiphosphlipid syndrome classification criteria: comments to the Letter of Jakub Swadzba and Jacek Musial.
authors.affiliation: Rheumatology Unit, Department of Clinical and Experimental Medicine, University of Padua, Padua.
authors.forename: A
authors.initials: A
authors.lastname: Ruffatti
authors.forename: V
authors.initials: V
authors.lastname: Pengo