A written form that complies with the polices and procedures of Emory University's IRB has been developed and approved. This form includes the following elements: title of the protocol, the name of the PI, study objectives and purpose, a detailed description of the procedure and interventions, explanation of the responsibilities of the subject and of the family member(s) who act as proxy respondents during follow-up interviews, any and all foreseeable risks, anticipated benefits, available alternatives, an explicit statement of confidentiality, non-compensation for participation, the right to withdraw at any time, a signature section, and a number to contact the PI or a member of the study team with any questions.