TY  - RPRT
TI  - Is the polar bear ( Ursus maritimus ) a hibernator? Continued studies on opioids and hibernation
AU  - David S. Bruce
AU  - Nancy K. Darling
AU  - Katheleen J. Seeland
AU  - Peter R. Oeltgen
AU  - Sita P. Nilekani
AU  - Steven C. Amstrup
PY  - 1990
DO  - 10.1016/0091-3057(90)90311-5
UR  - https://pubs.usgs.gov/publication/70184660
ID  - 70184660
ER  -