Resources Resources BioTraceIT VOS Poster WSAVA Recognition Assessment and Treatment of Pain Guidelines Pain Management Equine Merck Veterinary Manual Pain Perception Merck Veterinary Manual Recognition and Assessment of Pain in Animals Merck Veterinary Manual LoginYou must be an existing PainTrace user to access the Knowledge Base and Store. Please enter your username/email. Please enter your password. Remember Me Login Something went wrong. Please check your entries and try again. Forgot login? Photograph by Agostina Schenone