You may find some links given access to several resources:

Federal Veterinary Office website

HEP in Shock research

HEP in Huntington Disease

Guidelines for the welfare and use of animals in cancer research

Humane Endpoints Database from ALTWEB

Recognition and Alleviation of Pain in Laboratory Animals from the National Research Council (US) Committee on Recognition and Alleviation of Pain in Laboratory Animals (2009)

Humane Endpoints in laboratory animal experimentation, an interactive website