@article{ETD,
      school = {M.P.H.},
      author = {McGregor, Erin M.},
      url = {http://digitalcollections.ohsu.edu/record/811},
      title = {Validation of a senior walking environmental assessment  tool},
      number = {ETD},
      doi = {https://doi.org/10.6083/M4TB14XV},
      recid = {811},
      address = {2007},
}