Ireland, D., Liddle, J., McBride, S., Ding, H., & Knuepffer, C. Chat-Bots for People with Parkinson’s Disease: Science Fiction or Reality? Studies in Health Technology and Informatics, 214, 128-33. Retrieved from https://ebooks.iospress.nl/Extern/EnterMedLine.aspx?ISSN=0926-9630&Volume=214&SPage=128 (Original work published 2015)