@article{DA,
      author = {Welch Allyn Co.},
      url = {http://digitalcollections.ohsu.edu/record/4576},
      title = {Electric otoscope},
      abstract = {Digital photograph of an electric otoscope in a purple  velvet-lined case. The case has been set on a gray counter  and opened to show the instrument inside. An unrolled tape  measure is shown in the foreground for size comparison.},
      number = {DA},
      doi = {https://doi.org/10.6083/M4TT4PC8},
      recid = {4576},
      address = {1920},
}