Mikhail Protopopov is a researcher and a rheumatologist at the Med. Department of Gastroenterology, Infectiology and Rheumatology CBF, Charité Universitätsmedizin Berlin, Germany. His major research interests include spondyloarthritis, psoriatic arthritis, imaging and outcomes research/epidemiology. His work involves identifying predictors of radiographic progression in axial SpA, factors influencing physical function in axial SpA, different screening strategies in patients with suspicion of axial SpA as well as influences of extra-musculoskeletal manifestations on the clinical course of axial SpA. Mikhail is an associate member of ASAS, active member of the EMEUNET Working Group and a member of the EULAR/EMEUNET Twitter Journal Club initiative