@article{DA,
      url = {http://digitalcollections.ohsu.edu/record/7033},
      title = {Holmgren's test card for color blindness},
      abstract = {Casey Eye Institute Records, Accession No. 2010-006},
      number = {DA},
      doi = {https://doi.org/10.6083/M49022GG},
      recid = {7033},
}