21.   A recent World Bank study examined developing countries that opened themselves to global competition and those that did not.

22.   But a recent Finnish study examined consumption of dairy products and the risk of breast cancer.

23.   But disparities emerged when the study examined different regions of the state.

24.   But few studies have examined the effects of long-term cultural shifts on disordered eating in traditional societies.

25.   But no studies had examined tobacco use by younger students in Georgia.

26.   But that study is examining only the cost of the specific cleanup, not damages to the ecoysystem as a whole or to assets like beaches or fisheries.

27.   But the study did not examine whether nearby retail stores had suffered losses from reduced access, as opponents claim.

28.   Few, if any, earlier studies have examined drug-error deaths occurring among outpatients.

29.   Few studies have examined the mental capacity of sick patients.

30.   Few studies have examined whether the breast milk of the average American woman contains high enough levels of contaminants to harm infants.