1.   In the child research literature there seems to be a greater concern over ethical issues than in other areas.

2.   Needless to say, the research literature is full of argument and counter-argument about the explanations of agreed associations between factors.

3.   Pantony scrupulously studied the research literature, using comprehensive computer searches to find studies that might be relevant.

4.   The index is good but the references do not provide easy access to the research literature.

5.   The result is clear - there is large research literature on dissatisfaction and disillusionment.

6.   What can be gleaned from the complex research literature?

7.   The eight-page article accompanying the petition was described by its authors as a review of research literature on global warming.

8.   Thumbing through the research literature, Bergeson said he found only eight deaths caused by caffeine overdoses.