Article

Penny, Kay I, Smith, Graeme D, Steinke, Douglas T, Kinnear, Moira, Penman, Iain and Ramsay, D (2008) An examination of subgroup classification in irritable bowel syndrome patients over time: a prospective study. International Journal of Nursing Studies, 45 (12). pp. 1715-1720. ISSN 0020-7489