McKenna, H., McDonough, S., Keeney, S., Hasson, F., Lagan, K., Ward, M., … Duffy, O. (1969). Research priorities for the therapy professions in Northern Ireland and the Republic of Ireland: a comparison of findings from a Delphi consultation. Journal of Allied Health, 43(2), 98-109. Retrieved from http://openurl.ingenta.com/content/nlm?genre=article&issn=0090-7421&volume=43&issue=2&spage=98&aulast=McKenna (Original work published 1969)