It is important to keep in mind that after participants sign the consent, new information may be made available during the study that can lead the Investigators to withdraw a participant. For example, a participant may have a positive pregnancy test (i.e., she was not aware or did not report during the telephone pre-screening). In this case, the participant will be referred to appropriate care that can best manage and follow-up with their specific clinical needs. Another scenario may be that a participant may be arrested during their participation in the study based on new found information obtained by proper authorities (including NIH Police); in this case, a member of the NIH Clinical Center Social Worker Department will be notified.