@article{DA,
      recid = {6816},
      title = {Artificial heart valve testing equipment},
      number = {DA},
      abstract = {Digital scan of a 35mm slide. Image of a diagram showing  the equipment developed by Lowell Edwards to test  artificial heart valve components. The diagram shows the  silastic ball, key component of the Starr-Edwards heart  valves, immersed in fluid and attached to a rotating cam.  The title of the diagram has been cropped from the image,  but the note of speed (3450 Cycles/Minute) can be read in  full.},
      url = {http://digitalcollections.ohsu.edu/record/6816},
      doi = {https://doi.org/10.6083/M4FT8JQ6},
}