Idiopathic inflammatory myopathy: Interrater variability in muscle biopsy reading

Olivier PA, De Paepe B, Aronica E, Berfelo F, Colman R, Amato A, Dimitri D, Gallardo E, Gherardi R, Goebel HH, Hilton-Jones D, Hofer M, Holton J, Schrøder HD, Selcen D, Stenzel W, de Visser M, De Bleecker JL.