TY - CONF T1 - O18. Early Halo Sign Features on Ultrasound Examination of Treated Patients with Giant Cell Arteritis JO - Rheumatology PY - 2015/04/01 AU - ED - DO - DOI: 10.1093/rheumatology/kev081.006 PB - Oxford University Press (OUP) Y2 - 2024/09/20 ER -