@article{DA,
      recid = {6804},
      title = {Starr-Edwards heart valve},
      number = {DA},
      abstract = {Digital scan of a 35mm slide. One model of Starr-Edwards  heart valve, metal with a white mesh cloth covering, shown  on a blue background.},
      url = {http://digitalcollections.ohsu.edu/record/6804},
      doi = {https://doi.org/10.6083/M40R9N2K},
}