21.   Despite his success as a sire, Jones said Nureyev had fertility problems throughout his stud career.

22.   Every year, thousands of American women with fertility problems attempt to conceive by artificial reproduction.

23.   In the first study to look at solo mothers using sperm banks, researchers found that fertility problems were not the motivation in most cases.

24.   Kris Bevilacqua is a psychologist in Brooklyn, New York, who counsels women with fertility problems.

25.   Many of these people had experienced fertility problems, difficult pregnancies and births, or had previous children with health disorders.

26.   Men with fertility problems who father children through artificial insemination are likely to produce fertile offspring, according to a study released Friday.

27.   Rosenberg and Epstein, a psychologist, counsel couples with fertility problems.

28.   They can cause debilitating symptoms, including heavy bleeding and painful cramps, miscarriage and other fertility problems.

29.   Research was headed by a respected medial scientist who is now a leading South African expert in male fertility problems, the newspaper added.