Quoted from the petition site on Force Change.com:
"The Hunter Holmes McGuire VA Medical Center came under intense scrutiny after the research facility conducted maximum-pain experiments on puppies as young as six months. Maximum-pain experiments are experiments in which significant pain is induced and is intentionally not relieved."

For further details of these maximum pain experiments and to sign the petition to get them stopped, please see:
https://forcechange.com/379639/ban-r...ments-on-dogs/