@article{ETD,
      school = {M.P.H.},
      author = {Van Houten, Laura E.},
      url = {http://digitalcollections.ohsu.edu/record/2268},
      title = {Periconceptional folic acid supplementation and the  incidence of premature delivery: a prospective cohort},
      number = {ETD},
      doi = {https://doi.org/10.6083/M4S75DM9},
      recid = {2268},
      address = {2005},
}