“…More recently, clinical trials have started using social media (e.g. Facebook, Twitter), text messaging, and blogs to recruit and enhance retention of participants (Gurol-Urganci et al, 2013) and to meet regulatory requirements of community consultation (Stephens et al, 2013; Galbraith, 2014), as well as mobile technologies (tablets, smartphones) to collect data (surveys, patient reported outcomes) and assess or monitor study compliance (Wagner et al, 2014). Investigators are also starting to integrate other innovative data collection approaches, such as using apps (Buller, Borland, Bettinghaus, Shane, & Zimmerman, 2014), GPS (global positioning system) (Epstein et al, 2014), and wearable devices (Hossain et al, 2014).…”