TY  - RPRT
TI  - The efficacy of protoporphyrin as a predictive biomarker for lead exposure in canvasback ducks: effect of sample storage time
AU  - J. C. Franson
AU  - W.L. Hohman
AU  - J.L. Moore
AU  - M. R. Smith
PY  - 1996
DO  - 10.1007/bf00398606
UR  - https://pubs.usgs.gov/publication/70006598
ID  - 70006598
ER  -