Each observational protocol follows a heirarchy structure. This hierarchical structure involves three different version of a specific protocol.  

The versioning structure is as follows:  

• Root Protocol – The initial version of the protocol. (e.g., Knee OA PRP)
• Circle Protocol - A version of the protocol adjusted to the requirements of a particular circle. (e.g., Regen Med Knee OA PRP)
• Subscriber Protocol – A version of the protocol adjusted to the requirements of a particular user (e.g., John Smith Knee OA PRP)

All parts of a observational protocol can be fully customized. Some common customization request are the following:

• Add  required surveys to a protocol  
• Add questions to surveys  
• Delete unnecessary parts of a protocol
• Change the scheduling and delegates of surveys.  

Contact your Account Manager for more details.