Colorado State University is one of the top schools and research facilities in Veterinary medicine.
There are a number of Clinical Trials that dogs can be enrolled in.
Golden Retriever Lifetime Study
Canine Osteosarcoma
Canine Mast Cell Tumors
Canine Lymphoma
Canine Primary Lung Tumors
Canine Transitional Cell Carcinoma

Here's the link to the list of studies (and requirements) that dogs can be enrolled in http://csuanimalcancercenter.org/clinical-trials

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