by David J. Magee BPT PhD CM,James E. Zachazewski PT DPT SCS ATC,William S. Quillen PT PhD SCS FACSM,Robert C. Manske PT DPT SCS MEd ATC CSCS, Saunders
by Bruce W. Keene DVM MSc DACVIM,Francis W. K. Smith Jr. DVM DACVIM(Internal Medicine & Cardiology),Larry P. Tilley DVM DACVIM(Internal Medicine),Bernie Hansen, Saunders