Competent to sign informed consent The patient must be competent and have signed informed consent Competent to provide informed consent The subject must be deemed competent to give informed consent Mentally competent, ability to understand and willingness to sign the informed consent form Mentally competent, ability to understand and willingness to sign the informed consent form Mentally competent, ability to understand and willingness to sign the informed consent form Mentally competent, ability to understand and willingness to sign the informed consent form Mentally competent, ability to understand and willingness to sign an Institutional Review Board (IRB)-approved written informed consent form Able to understand the consent competent to sign Mentally competent, ability to understand and willingness to sign the informed consent form Mentally competent, ability to understand and willingness to sign the informed consent form The subject must be deemed competent to give informed consent Mentally competent, ability to understand and willingness to sign the informed consent form Mentally competent, ability to understand and willingness to sign an Institutional Review Board (IRB)-approved written informed consent form Mentally competent, ability to understand and willingness to sign the informed consent form Mentally competent, ability to understand and willingness to sign the informed consent form Competent to comprehend, sign, and date an IRB-approved informed consent form Competent to give informed consent Mentally competent, ability to understand and willingness to sign the informed consent form Mentally competent to consent Any participant who is not competent to provide informed consent for study participation per the investigator Sighted and mentally competent to consent Women competent to sign study specific written informed consent Patients competent to sign study specific informed consent