Resources for implementing animal therapy (dog) into practice

I want to investigate what would be involved in both training and, alternately, purchasing a therapy dog. Currently a grad student, I am planning to eventually obtain my LCSW in Illinois. My research today is to help inform my future self and to start to lay the groundwork for possibly being able to offer this service.

Anyone here have some good recommendations for where to seek more info to help me learn more about this from a practictioner's (not client) perspective?