Is Giant cell arteritis over diagnosed or over-referred? Caution IF the patient is: 1) under age 50yrs; 2) has Hx of chronic HA or migraine; 3) has normal ESR/CRP. Why not consider screen w/ Giant Cell Arteritis Probability Score (needing 9.5/32 points) https://t.co/qnCWgzjYJ4 https://t.co/LT6atm0m8f