American Society of Landscape Architects - www.asla.org
Professional Interest Group on Healthcare and Therapeutic Design

Fellow of the Royal Geographical Society - www.rgs.org
Association of American Geographers - www.aag.org
International Psychogeriatric Association - www.ipa-online.net
Environmental Design Research Association - www.edra.org
American Horticultural Therapy Association - www.ahta.org
THRIVE (UK - Social and Therapeutic Horticulture) - www.thrive.org.uk
Royal Institute for British Architects (RIBA affiliate) - www.riba.org