@article{DA,
      url = {http://digitalcollections.ohsu.edu/record/6845},
      title = {Artificial heart valve},
      abstract = {Digital scan of a 35mm slide. Image of a ball-and-cage  style artificial heart valve, set on a light blue fabric  background. A white plastic ball is enclosed in a metal  cage with a white mesh cloth-covered ring.},
      number = {DA},
      doi = {https://doi.org/10.6083/M4Q52N9Q},
      recid = {6845},
}