31.   Iron deficiency, sometimes due to blood loss or diets low in iron, is the most common cause of anemia.

32.   New research linking even mild iron deficiency with low test scores could help explain why teen-age girls tend to do worse than boys in math.

33.   The difference in performance was most striking in adolescent girls, who also had the highest prevalence of iron deficiency.

34.   The program said the women were told the tests were to discover why they suffered iron deficiency.

35.   Two years ago, Jacobs was diagnosed with an iron deficiency.

36.   He had recently been treated for an iron deficiency, and two weeks after the trials he was diagnosed with a virus that contributed to his poor times.

37.   In Zanzibar, almost all children complained of worms, many showing stunted growth and more than half exhibiting iron deficiency.

38.   It has been suggested that mild iron deficiency can reduce the risk of heart disease, while too much iron heightens the risk of heart attack.

39.   The study found little iron deficiency among children older than toddlers or among boys and adult men.

40.   World record holder Kieren Perkins struggled at the Australian trials, but has since been treated for an iron deficiency.