Harmful effects of choke chains and prong collars By: Debbie Torraca, DPT, MSPT,  CCRP, Board-Certified Orthopedic Clinical Specialist Emeritus & Anthony De Marinis, Certified Dog Behavior Consultant- IAABC, CBATI, VSPDT, TTWC, VSA-DT   Current research has been a game-changer in understanding, training and teaching