11.   Especially compelling is the realization that so many diverse factors can lead to deterioration.

12.   Experts not associated with the commercial development of such factors said it was entirely unclear if these neurotrophic factors would lead to new treatments for these deadly diseases.

13.   Factors like that lead to confidence in politics.

14.   In addition, several socio-economic factors lead to high levels of casual sex in sub-Saharan Africa, experts say.

15.   Previously, those factors led many ranchers to leave their animals out to graze during the spring and summer months rather than selling them at low prices to feedlots.

16.   Several factors are leading to the swell of one-child families, experts in the field of only children say.

17.   Several factors have led to the transformation of marketing across the industry.

18.   Several factors have led to thedramatic increase in the cost of prescription drugs, officials say.

19.   Several factors have led police to this point.

20.   Several factors led to this new look.