41.   The report was conducted by researchers at Library of Congress on behalf of the National Intelligence Council, an advisory group to the CIA .

42.   The study was conducted by researchers at Columbia University, the New York State Psychiatric Institute, and the Mount Sinai Medical Center in New York City.

43.   The study was conducted by researchers at the Athens School of Public Health, the University of Athens Medical School and the Harvard School of Public Health in Boston.

44.   The study, conducted by researchers at Brooks Air Force Base in Texas, was published this month in The American Journal of Health Promotion.

45.   The surveys were conducted by researchers from Harvard and Boston Universities and the Boston consulting firm of John Snow, Inc.

46.   The study was conducted by researchers from the University of Hawaii medical school, Erasmus University medical school in Holland and the National Institute on Aging in Maryland.

47.   The study, conducted by researchers at Rockefeller University in New York in an unusually rigorous manner, was published Thursday in The New England Journal of Medicine.

48.   The study, and another conducted by researchers at the M.D. Anderson Cancer Center, showed promise in reducing tumors without causing major side effects, researchers said.

49.   The study, conducted by researchers at Rockefeller University in New York, in an unusually rigorous manner, was published Thursday in The New England Journal of Medicine.

50.   The study was conducted by researchers at the Johns Hopkins University School of Medicine in Baltimore, Md.