Although the different DaVinci guides do reflect different steps in the coverage and pre-authorization process, they are addressing individual use cases. DTR and CRD can be used for a number of purposes that don't involve prior authorization at all. And DTR and CRD can also be used independently. We have approved other tracker items that will make clear both their independent scopes and ability to function on their own as well as how they can be used together in situations where the specific objective is to manage prior authorization.