Reply: To PMID 25370843. - Torp-Pedersen S; Christensen R; Ellegaard K; Torp-Pedersen A; Szkudlarek M; D'Agostino MA; Iagnocco A; Naredo E; Balint P; Wakefield RJ; Terslev L; Jensen JA (Arthritis & rheumatology (Hoboken, N.J.), 2015)