@article{DA,
      recid = {4532},
      author = {Machlett Laboratories},
      title = {High tension switch tube},
      address = {1956},
      number = {DA},
      abstract = {Digital photograph of the first high tension switch tube  for roentgenography, which was developed at University of  Oregon Medical School circa 1956. An offprint of Dr.  Charles Dotters article in the January 1956 issue of the  American Journal of Roentgenology, Radium Therapy, and  Nuclear Medicine is shown behind the apparatus, while a  ruler is shown in the foreground for size comparison.},
      url = {http://digitalcollections.ohsu.edu/record/4532},
      doi = {https://doi.org/10.6083/M4HQ3X92},
}