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You can't always get what you want, but you can get what you need : recruiting participants from geographically-defined high and low-walkable communities
conference contribution
posted on 2004-01-01, 00:00 authored by L Du Toit, Evie Leslie, Ester Cerin, A Bauman, N OwenYou can't always get what you want, but you can get what you need : recruiting participants from geographically-defined high and low-walkable communities