When my 6 year old boxer was diagnosed with nasal carcinoma, this was devastating news. At which time she received radiation and has now been on oral chemotherapy since August 2012. This was quite a substantial cost and with VPI we have received at least half of the investment back. Without VPI the outcome may have been very different. I am pleased to say my boxer is now almost 1 year out from diagnosis and projected to have at a minimum another year without disease progression. Thanks for peace and mind VPI!