1. Systolic time intervals for left and right ventricles of swine;Ackermann;American Journal of Veterinary Research,1976
2. The QRS electrocardiogram, epicardiogram, vectorcardiogram and ventricular excitation of swine;Hamlin;The American Journal of Physiology,1960
3. The electrocardiogram from miniature swine recorded with the McFee-Axial Reference Program;Hamlin;Journal of Electrocardiology,1974
4. Genesis of QRS in the ruminant: Graphics simulation;Hamlin;American Journal of Veterinary Research,1984
5. Anatomical and physiologic basis for interpretation of the electrocardiogram;Hamlin;American Journal of Veterinary Research,1960