Westergaard 2017.

Country	USA
Resources	High‐income country
Data collection	Interviews
Health worker category	Lay health workers (LHWs)
Health issue	HIV/AIDS and substance use
mHealth system	The LHWs used smart phones, issued to them, to screen clients for barriers to care and medication adherence.
WHO taxonomy	2.1 Client identification and registration 2.1.2 Enrol client for health services/clinical care plan 2.3 Healthcare provider decision support 2.3.3 Screen clients by risk or other health status
Notes	The mHealth study was conducted between September 2013 and November 2014.