11.   Proportionally, the size difference is about the same as that between a grain of sand and a Volkswagen Beetle.

12.   The lifetime consumption figures were adjusted for size differences between men and women.

13.   The relationship between size difference and lifestyle holds good among other animals, too.

14.   The size difference was also evident.

15.   There is too much of a size difference.

16.   The size difference appeared in the communication conduit between parts of the brain used for understanding speech and perceiving objects.

17.   Much has been made of the size difference between the Dallas offensive line and the Pittsburgh defenders.