@article{DA, recid = {6805}, title = {Artificial heart valves}, number = {DA}, abstract = {Digital scan of a 35mm slide. Two early models of artificial heart valve, rubberized disks with flap valves and white mesh cloth covering. Shown on a green fabric background, with a ruler to indicate size.}, url = {http://digitalcollections.ohsu.edu/record/6805}, doi = {https://doi.org/10.6083/M4W094KK}, }