1. Telehealth: mapping the evidence for patient outcomes from systematic reviews;Totten,2016
2. Effectiveness of telemedicine: a systematic review of reviews;Ekeland;Int J Med Inform,2010
3. History of telemedicine: evolution, context and transformation;Bashshur,2009
4. American Hospital Association Annual Survey, Health Information Supplement. 2013. Available at: http://www.ahadata.com/aha-annual-survey-database-asdb/.
5. American Hospital Association. The promise of telehealth for hospitals, health systems and communities. Trend Watch. 2015. Available at: http://www.aha.org/research/reports/tw/15jan-tw-telehealth.pdf. Accessed April 20, 2017.