Tore K. Kvien
Imputing missing data of function and disease activity in rheumatoid arthritis registers: what is the best technique?
Drug retention of biological DMARD in rheumatoid arthritis patients: the role of baseline characteristics and disease evolution
Sat0587 the Art of Imputing Missing Data of Disease and Function Activity in Rheumatoid Arthritisregistries
Comparative effectiveness of subcutaneous tocilizumab versus intravenous tocilizumab in a pan-European collaboration of registries