11.   One third of all women of reproductive age live in these counties.

12.   Secondary amenorrhea, the ceasing of monthly menstrual periods in women of reproductive age, can be caused by strenuous exercise, weight loss or anorexia nervosa.

13.   Scientists wanted something small, tame and highly breedable, something that would quickly reach reproductive age.

14.   Since most people now survive to reproductive age, according to one view, natural selection is being robbed of its most important raw material.

15.   Still, smokers of reproductive age appear to be running a significantly higher risk that their cigarette habits may have results that may extend to future generations.

16.   Women of reproductive age are already known to be most at risk of salt starvation.

17.   About three out of four women of reproductive age will develop fibroids, which are non-cancerous tumors.

18.   As a result, Gearhart said the medical use of the technique would be limited to women of reproductive age.

19.   Females take five years to reach reproductive age.

20.   In fact, complications of pregnancy and childbirth are among the major causes of death of women of reproductive age in many developing countries.