Etman, A., Kamphuis, C. B., Prins, R. G., Burdorf, A., Pierik, F. H., & van Lenthe, F. J. (2014). Characteristics of residential areas and transportational walking among frail and non-frail Dutch elderly: Does the size of the area matter? BioMed Central.

Etman, Astrid, Carlijn BM Kamphuis, Richard G. Prins, Alex Burdorf, Frank H. Pierik, و Frank J. van Lenthe. Characteristics of Residential Areas and Transportational Walking Among Frail and Non-frail Dutch Elderly: Does the Size of the Area Matter? BioMed Central, 2014.

Etman, Astrid, et al. Characteristics of Residential Areas and Transportational Walking Among Frail and Non-frail Dutch Elderly: Does the Size of the Area Matter? BioMed Central, 2014.