We're sorry. This study is closed and no longer recruiting participants.
STUDY BASICS
Are you an African American who either knows or suspects that you may have sickle cell trait? If so, you may be able to participate in a study to help understand how the quality of red blood cells is improved when the vitamin biotin is added to stored blood. Participants must weigh at least 110 pounds and must not be anemic. Involves 10 visits over 8 months. Compensation and parking provided.