1.   A crucial factor in this does seem to have been changes in the role of women within the family.

2.   A high level of concern about children was the main factor in psychological stress among men as well as women.

3.   A key factor in starting any business is its location.

4.   A limiting factor in health care is the way resources are distributed.

5.   A second and equally important impact of the time factor in making oil-backout investments is inflationary rises in capital costs.

6.   A well trained workforce is a key factor in gaining a competitive edge over our rivals.

7.   Alternatively, dictatorship might be better defined by the absence of a limited mandate-a critical factor in our definition of democracy.

8.   An important factor in achieving high productivity in grassland is the availability of nitrogen to the plant roots.

9.   And limiting calories is the single most important factor in weight loss.