@article{DA,
      author = {Edwards, Lowell (Miles Lowell), 1898-1982 and Starr,  Albert, 1926-},
      url = {http://digitalcollections.ohsu.edu/record/6035},
      title = {Starr-Edwards heart valve prototype with shield pulled  back},
      publisher = {Oregon Health & Science University},
      abstract = {Color digital photograph of a pair of hands pulling back  the Silastic shield from the ring of a Starr-Edwards  ball-and-cage heart valve prototype.

circa 1957 - 1960},
      number = {DA},
      doi = {https://doi.org/10.6083/M45D8QDM},
      recid = {6035},
      address = {1960},
}