@misc{indiciae95c20174457f,
  title = {Blood ammonia measurement using a simple reflectometer.},
  author = {R N Ratnaike and J E Buttery and S Hoffmann},
  year = {1984},
  doi = {10.1515/cclm.1984.22.1.105},
  url = {https://pubmed.ncbi.nlm.nih.gov/6421986/},
  note = {Source identifier: 6421986}
}