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\bibitem{Maller_etal2005} Maller, C., Townsend, M., Anita Pryor, A., Brown, P., \& St. Leger, L. (2005). Healthy nature healthy people: {\textquotedblleft}contact with nature{\textquotedblright} as an upstream health promotion intervention for populations. \textit{Health Promotion International}, \textit{21}(1; 22.12.2005), 45--54.

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