@misc{indiciae192213d52da2,
  title = {Modified Pisano method for estimating urinary metanephrines.},
  author = {R N Gupta and D Price and P M Keane},
  year = {1973},
  url = {https://pubmed.ncbi.nlm.nih.gov/4705180/},
  note = {Source identifier: 4705180}
}