TY - GEN T1 - Linking consumer health measures from smartphones and wearables with UK national data assets: Protocol for Physical Activity Patterns after Knee Arthroplasty (PAPrKA), a retrospective cohort study (Preprint) T2 - JMIR Preprints PY - 2026/07/29 AU - Pritchard E AU - Olanrewaju AE AU - Mackey E AU - Shao S AU - Conde P AU - Cook L AU - Dobson R AU - Filbay SR AU - Folarin A AU - Judge A AU - Laidlaw L et al ED - DO - DOI: 10.2196/preprints.108226 Y2 - 2026/09/11 ER -