@misc{indiciaeb7d1cd3c9ced,
  title = {The efficacy of protoporphyrin as a predictive biomarker for lead exposure in canvasback ducks: effect of sample storage time},
  author = {J. C. Franson and W.L. Hohman and J.L. Moore and M. R. Smith},
  year = {1996},
  doi = {10.1007/bf00398606},
  url = {https://pubs.usgs.gov/publication/70006598},
  note = {Source identifier: 70006598}
}