Sickle-cell disease.
D000328:Adult; D000755:Anemia, Sickle Cell / Q000175:diagnosis / Q000517:prevention & control*; D001290:Attitude; D044383:Black People; D002353:Carrier State; D002648:Child; D005069:Evaluation Studies as Topic; D005817:Genetic Counseling; D006801:Humans; D008403:Mass Screening; D012959:Socioeconomic Factors; D014481:United States; D001741:Black or African American