Usability of a Tablet-Based Cognitive Assessment Administered by Medical Assistants in General Practice: Implementation Study. - Schaper P; Hanke A; Jonas S; Nissen L; Reimer LM; Schweizer F; Wagner M; Rolke K; Rosendahl C; Tillmann J; Weckbecker K; Thyrian JR (JMIR formative research, 2025)