@article{DA,
      author = {Edwards, Lowell (Miles Lowell), 1898-1982 and Starr,  Albert, 1926-},
      url = {http://digitalcollections.ohsu.edu/record/6049},
      title = {Three Starr-Edwards heart valve prototypes},
      abstract = {Color digital photograph of three Starr-Edwards heart  valve prototypes, ball-and-cage design, standing beside a  ruler for scale. The right-hand valve has a plastic cage,  the central valve a metal cage, and the left-hand valve has  a metal cage with a Silastic shield.},
      number = {DA},
      doi = {https://doi.org/10.6083/M4BZ64MK},
      recid = {6049},
      address = {1960},
}