Development of the 2023 ACR/EULAR Antiphospholipid Syndrome Classification Criteria, Phase III‐C Report: Assessment of Patient Scenarios (Derivation Cohort) and Refinement of Definitions
Objective The 2023 ACR/EULAR Antiphospholipid Syndrome (APS) Classification criteria aim to identify patients with high likelihood of APS for research. Phases I/II of our four-phase methodological a…