Differences in treatment response between female and male psoriatic arthritis patients during IL-12/23 therapy with or without methotrexate: post hoc analysis of results from the r... oleh Frank Behrens, Jürgen Rech, Jürgen Braun, Denis Poddubnyy, Gerd R Burmester, Uta Kiltz, Stephanie Finzel, Diamant Thaçi, Herbert Kellner, Karolina Benesova, Reinhard E Voll, Jan Brandt, Andrea Rubbert-Roth, David M Kofler, Klaus Krüger, Siegfried Wassenberg, Winfried Demary, Regina Max, Peter Kastner, Michaela Koehm, Ulrich von Hinüber, Raoul Bergner, Jan Brandt-Jürgens, Ann C Foldenauer, Tanja Rossmanith, Maren Sieburg, Rieke HE Alten, Arnd Kleye, David Kofler, Gabriele Lorenz, Holger Schwenke, Astrid Thiele, Jochen Walter