ACR GCA classification criteria tested in 676 patients suspected GCA (+US) - 276 dx w/ GCA; 400 not. Sensitivity was 87%, specificity 70%; 35 (13%) GCA pts did not meet criteria. & 119 non-GCA (30%) had ≥6 points (most PMR) https://t.co/bTrj83yM7l https://t.co/9iA8LbX6vB