@misc{misc, title  = {{Older Adults' Use of Physical Activity Monitors in an 18-Month Trial: Descriptive Study of Technical Problems and Assistance (Preprint)}},

 url = {{http://dx.doi.org/10.2196/preprints.47891 }},

 year = {{2023}},

 month = {{4}},

 author = {{Choma EA and Hayes S and Lewis BA and Wyman JF and Rothman AJ and Guan W and McMahon S}},

 doi = {{10.2196/preprints.47891}},

 note = {{Accessed on 2024/09/20}}}