Anyone from the United States, including Puerto Rico, can join ResearchMatch. All ages and backgrounds are welcome. A parent, legal guardian or caretaker may register someone under the age of 18 or an adult that may not be able to enter in their own information. If a volunteer is under 18 at the time of registration, they will need to create their own account when they turn 18, or be re-registered by their parent, guardian, or caretaker.