Developing new classification criteria for improving antiphospholipid syndrome research

(Hospital for Special Surgery) An international team of more than 80 collaborators led by Hospital for Special Surgery (HSS) investigators is developing new classification criteria for clinical research of antiphospholipid syndrome (APS), a life-threatening autoimmune clotting disorder. In a paper published online in Arthritis Care & Research, the investigators reported on the first two of four phases of criteria development.