21.   No universally recognized studies have demonstrated that abstinence classes succeed in bringing more virgins to the marriage altar.

22.   Now new studies have demonstrated that safety regulations can kill.

23.   Numerous studies have demonstrated that qualities such as those, more reliably than conventional intelligence test scores, relate to performance in life.

24.   Previous studies have demonstrated the value of regular exercise in lowering the blood pressure of people with mild to moderate hypertension.

25.   Previous studies had demonstrated the link between eating fruits and vegetables and a reduced risk of coronary artery disease.

26.   Repeated studies demonstrate convincingly that marijuana protects vision by lowering that fluid pressure.

27.   Scientific studies have demonstrated that male rats exposed to the pesticide before and shortly after birth can suffer effects like malformed genitalia.

28.   Several studies have demonstrated improvement in performance when extremely low levels of dietary fat were increased to more moderate amounts.

29.   Several studies have now demonstrated the cognitive benefits of regular physical activity, even for those who may have physical limitations or emotional impairments.

30.   Spitzer said his study clearly demonstrated racial inequity in police searches, but he said he was not accusing the Police Department of racial profiling.