Clinical response, drug survival and predictors thereof in 432 ankylosing spondylitis patients after switching tumour necrosis factor α inhibitor therapy: results from the Danish nationwide DANBIO registry

Bente Glintborg, Mikkel Østergaard, Niels Steen Krogh, Ulrik Tarp, Natalia Manilo, Anne Gitte Rasmussen Loft, Annette Hansen, Annette Schlemmer, Victoria Fana, Hanne M. Lindegaard, Henrik Nordin, Claus Rasmussen, Leif Ejstrup, Dorte Vendelbo Jensen, Peter Mosborg Petersen, Merete Lund Hetland