11.   Bowden said the most likely source of the fungus in Arizona is Mexico.

12.   But by controlling for background and student work the previous year, the study concluded that computers were the likely source of the positive results.

13.   But Congress is also the most likely source of friendly, useful advice and even criticism.

14.   But Hartzler cast Jones as the likely source for many of the leaks.

15.   But Eisner and colleagues argue that since these fire-colored beetles are not known to prey on other adult insects, blister beetles are not a likely source.

16.   But most are pointing to the massive blooms themselves as the likely source of the odors in the absence of any man-made chemical spills along the coast.

17.   By plotting trajectories, astronomers have traced the likely source of comets to the outer reaches of the solar system.

18.   Computer experts quickly identified the Philippines as the likely source of the infection.

19.   He indicated that Tokai Bank, one of the largest shareholders of Chiyoda, would have been a likely source of assistance.

20.   In pro wrestling, the most likely source of expertise on twosomes is Captain Lou Albano.