@article{DA,
      recid = {4540},
      title = {Laennec monaural stethoscope},
      number = {DA},
      abstract = {Medical Museum Collection, Box 50},
      url = {http://digitalcollections.ohsu.edu/record/4540},
      doi = {https://doi.org/10.6083/M4GQ6W5P},
}