11.   He said the fact that the study did not involve a group getting dummy pills makes the findings less reliable.

12.   It depends on where they get the pill.

13.   People felt completely back to normal within seven days, compared with nine days in those getting dummy pills.

14.   The scientists found that there were no more serious side effects among those taking the drugs than among those getting fake pills.

15.   Their symptoms were half-gone in three days, compared with four days among those getting dummy pills.

16.   They were so certain that they stopped the study because it was considered unethical to deprive women in the study who were getting dummy pills.

17.   They returned when women received either estrogen or progesterone but not when they got the dummy pills.