Prevalence and adverse consequences of delayed diagnosis and misdiagnosis in thrombotic antiphospholipid syndrome. An observational cohort study and a review of the literature.

"Declarations Ethics approvalThe study was approved by the institutional review board for observational studies and the Audit Committee of the University-Hospital of Padua (Reference 6894) and was carried out in accordance with the 1964 Declaration of Helsinki and its later amendments, or comparable ethical standards. Consent to participateAn informed consent to participate in the study and to publish the data was obtained from each patient. Conflict of InterestThe authors have no relevant financial or non-financial interests to disclose. Conflict of Interest The authors have no relevant financial or non-financial interests to disclose."

"Funding Open access funding provided by Università degli Studi di Padova within the CRUI-CARE Agreement. The authors did not receive support from any organization for the submitted work."