@article{DA,
      recid = {4516},
      title = {Ether inhalers},
      address = {1940},
      number = {DA},
      abstract = {Digital photograph of three ether inhalers, from the late  nineteenth and early twentieth centuries. Two metal and one  glass inhaler have been placed on a gray counter, and a  ruler has been included for size comparison.},
      url = {http://digitalcollections.ohsu.edu/record/4516},
      doi = {https://doi.org/10.6083/M4KK995B},
}