@article{jongstra2017-28546139,
  author  = {Jongstra, S. and Wijsman, L. W. and Cachucho, R. and Hoevenaar-Blom, M. P. and Mooijaart, S. P. and Richard, E.},
  title   = {{Cognitive Testing in People at Increased Risk of Dementia Using a Smartphone App: The iVitality Proof-of-Principle Study}},
  journal = {JMIR mHealth and uHealth},
  year    = {2017},
  doi     = {10.2196/mhealth.6939},
  pmid    = {28546139},
  url     = {https://doi.org/10.2196/mhealth.6939}
}