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Bergerud, A.T., and H.L. Russell. 1966. Extractions of incisors of Newfoundland 
     caribou. Journal of Wildlife Management 30:842-843.
     
Cuthill, I. 1991. Field experiments in animal behaviour: methods and ethics. 
     Pages 56-62 in Ethics in research on animal behavior. M. Stamp Dawkins 
     and M. Gosling, editors. Academic, New York, New York, USA.

DelGiudice, G.D., L.D. Mech, K.E. Kunkel, E.M. Gese, and U.S. Seal. 1992. 
     Seasonal patterns of weight, hematology, and serum characteristics of 
     free-ranging female white-tailed deer in Minnesota. Canadian Journal of 
     Zoology 70:974-983.
 
Festa-Bianchet, M., P. Blanchard, J.M. Gaillard, and A.J.M. Hewison. 2002. 
     Tooth extraction is not an acceptable technique to age live ungulates. 
     Wildlife Society Bulletin 30:282-283.
    
Heisey, D.M., and T.K. Fuller. 1985. Evaluation of survival and cause-specific 
     mortality rates using telemetry data. Journal of Wildlife Management 49:
     668-674.
    
Mech, L.D., and R.E. McRoberts. 1990. Relationship between age and mass among 
     female white-tailed deer during winter and spring. Journal of Mammalogy 
     71:688-691.
     
Nelson, M.E. 2001. Tooth extractions from live-captured white-tailed deer. 
     Wildlife Society Bulletin 29:245-247.
     
Nelson, M.E., and L.D. Mech. 1990. Weights, productivity, and mortality of old 
     white-tailed deer. Journal of Mammalogy 71:689-691.
     
Stamp Dawkins, M. and M. Gosling, editors. 1991. Ethics in research on animal 
     behavior. Academic, New York, New York, USA.