Do musculoskeletal ultrasound and magnetic resonance imaging identify synovitis and tenosynovitis at the same joints and tendons? A comparative study in early inflammatory arthritis and clinically suspect arthralgia. - Ohrndorf S; Boer AC; Boeters DM; Ten Brinck RM; Burmester GR; Kortekaas MC; van der Helm-van Mil AHM (Arthritis research & therapy, 2019)