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Fitbit®: An accurate and reliable device for wireless physical activity tracking.
Diaz KM, Krupka DJ, Chang MJ, Peacock J, Ma Y, Goldsmith J, Schwartz JE, Davidson KW. Diaz KM, et al. Among authors: krupka dj. Int J Cardiol. 2015 Apr 15;185:138-40. doi: 10.1016/j.ijcard.2015.03.038. Epub 2015 Mar 4. Int J Cardiol. 2015. PMID: 25795203 Free PMC article. No abstract available.
An inexpensive device for monitoring patients' weights via automated hovering.
Shaffer JA, Diaz K, Alcántara C, Edmondson D, Krupka DJ, Chaplin WF, Davidson KW. Shaffer JA, et al. Among authors: krupka dj. Int J Cardiol. 2014 Mar 15;172(2):e263-4. doi: 10.1016/j.ijcard.2013.12.123. Epub 2014 Jan 4. Int J Cardiol. 2014. PMID: 24508493 Free PMC article. No abstract available.