@article{ETD,
      school = {M.N.},
      author = {Warren, Deborah},
      url = {http://digitalcollections.ohsu.edu/record/1283},
      title = {The Association of physical activity with preterm delivery  of women identified as being at risk for preterm delivery},
      number = {ETD},
      doi = {https://doi.org/10.6083/M4HX19V3},
      recid = {1283},
      address = {1987},
}