@misc{indiciae95ee6c7c2bee,
  title = {Duplicate breath testing: some statistical analyses.},
  author = {R G Gullberg},
  year = {1988},
  doi = {10.1016/0379-0738(88)90186-7},
  url = {https://pubmed.ncbi.nlm.nih.gov/3402861/},
  note = {Source identifier: 3402861}
}