11.   Also, the extra nutritional demands brought about by pregnancy may precipitate symptoms and is another factor contributing to earlier diagnosis in women.

12.   Both these factors contribute to the extremely poor prognosis at presentation.

13.   Three factors probably contributed to the decline in productivity growth.

14.   All those geographic factors contributed to the early cultural and political unification of China.

15.   And other factors also contribute to a lack of strong social connections.

16.   Are these factors contributing to my situation?

17.   Both factors contributed to a downturn in the Texas real estate market.

18.   Both factors contribute to high evaporation rates and fast drying.

19.   A Foreign Ministry spokesman, Omar Samad, said several factors had contributed to the bizarre killing at the Kabul Airport on Thursday night.

20.   A spokesman for Random House, Stuart Applebaum, said that one-time factors contributed to the loss.