@misc{indiciae8a1f34aaa8bb,
  title = {Precisely wrong? Urinary fractionated metanephrines and peer-based laboratory proficiency testing.},
  author = {Ravinder J Singh and Stefan K Grebe and Bingfang Yue and Alan L Rockwood and John C Cramer and Zoltan Gombos and Graeme Eisenhofer},
  year = {2005},
  doi = {10.1373/clinchem.2004.043802},
  url = {https://pubmed.ncbi.nlm.nih.gov/15681566/},
  note = {Source identifier: 15681566}
}