The Acceptance, Usability, and Utility of a Web Portal for Back Pain as Recommended by Primary Care Physicians: Qualitative Interview Study With Patients

Christian Schlett, Nicole Röttele, Andrea Schöpf-Lazzarino, Piet van der Keylen, Miriam Klimmek, Mirjam Körner, Kathrin Schnitzius, Sebastian Voigt-Radloff, Andy Maun, Mario Sofroniou, Erik Farin-Glattacker