@article{ETD,
      school = {M.P.H.},
      author = {Siu, Vivian W.},
      url = {http://digitalcollections.ohsu.edu/record/682},
      title = {The association between residential built environment and  walking habits among older women in the Portland  metro-area},
      number = {ETD},
      doi = {https://doi.org/10.6083/M4R49NSM},
      recid = {682},
      address = {2011},
}