TY  - RPRT
TI  - Indicators of severe undernutrition in urine of free-ranging elk during winter
AU  - G. D. DelGiudice
AU  - U.S. Seal
AU  - L.D. Mech
PY  - 1991
UR  - https://pubs.usgs.gov/publication/5222580
ID  - 5222580
ER  -