31.   He said the space program has collected little data to date on the long-term effects of space flight, and that more comprehensive research is needed.

32.   He says that more research is needed before cell phones can be considered completely safe.

33.   However, more research is still needed.

34.   I needed some research on past presidential Cabinets.

35.   In the end, conferees said more research is needed.

36.   It argued that more research is needed because many strange phenomena have been pooh-poohed too quickly.

37.   It encourages its members to use handless communications devices in vehicles and believes more research is needed on the subject.

38.   It could be that the disease is more progressive within black women and perhaps should be treated differently, but research is needed, she said.

39.   More research is needed because the disease is reaching epidemic proportions.

40.   More research is needed on combination effects and on very-low-level chemical exposures.