by Cline, J.M. (North Carolina State University, Raleigh, NC), Schlafer, D.W, Callihan, D.R, Vanderwall, D, Drazek, F.J
Published in Veterinary pathology (01.01.1991)

by Clark, D.M, Harvey, H.J, Roth, L, Callihan, D.R
Published in Journal of the American Veterinary Medical Association (15.01.1986)

by Perdrizet, J.A, Callihan, D.R, Rebhun, W.C, Shin, S.J
Published in Cornell veterinarian (USA) (01.10.1987)