Official websites use .gov
A
.gov website belongs to an official
government organization in the United States.
Secure .gov websites use HTTPS
A lock (
) or https:// means you've safely
connected to the .gov website. Share sensitive
information only on official, secure websites.
Diagram showing the life cycle of a smartphone research app: (A) development, (B) deployment to a digital store/device, (C) gaining informed consent, and (D) data collection and transfer. Practical barriers and problems are highlighted in red.
