31.   Our study shows the long term spontaneous resolution of severe glue ear in children.

32.   Over and over again, the studies showed huge failure rates.

33.   Recent studies have shown that women find it harder than men to give up smoking.

34.   Recent studies show that advertising usually fosters competition and therefore lower prices.

35.   Recent studies show that girls tend to be better at languages than boys.

36.   Recent studies show that moderate amounts of alcohol are beneficial to health.

37.   Recent studies show that women still get paid a lot less than men.

38.   Several other recent studies have shown that moderate consumption of red wine, in particular, is helpful for preventing heart disease.