@article{christopherson_1911, 
  title={THE VALUE OF THE ALBUMIN REACTION IN TUBERCULOUS SPUTUM.}, 
  volume={178}, 
  DOI={10.1016/s0140-6736(01)01864-5}, 
  number={4608}, 
  publisher={Elsevier BV}, 
  author={Christopherson}, 
  year={1911}
  }