@article{DA,
      author = {Oregon Heart Association},
      url = {http://digitalcollections.ohsu.edu/record/5556},
      title = {Starr-Edwards heart valve tree},
      publisher = {Oregon Health & Science University},
      abstract = {Black and white photograph from the Oregon Heart  Association showing the removal of a Starr-Edwards heart  valve from the fabrication assembly, called the "valve  tree."},
      number = {DA},
      doi = {https://doi.org/10.6083/M4N29VF0},
      recid = {5556},
      address = {1960},
}