A User-Centered Design Approach for a Screening App for People With Cognitive Impairment (digiDEM-SCREEN): Development and Usability Study. - Zeiler M; Dietzel N; Haug F; Haug J; Kammerer K; Pryss R; Heuschmann P; Graessel E; Kolominsky-Rabas PL; Prokosch HU (JMIR human factors, 2025)