1. Winter sleep in the black bear: a physiologic and metabolic marvel;Nelson;Mayo Clin Proc,1973
2. Neuroendocrine and metabolic interactions in the hibernating black bear;Nelson;Acta Zool Fenn,1983
3. Protein and fat metabolism in hibernating bears;Nelson;Fed Proc,1980
4. Ratio of serum urea to serum creatinine in wild black bears;Nelson;Science,1984
5. Seasonal variations in the ratio of serum urea to creatinine (U/C) in black bears (abstract);Ensrud;Physiologist,1986