71.   Though the study examined only music, some workers prefer news over music for feeling more productive.

72.   Previous studies have examined the effects of melatonin on sleep with mixed results.

73.   An international narcotics study out Tuesday examines trends worldwide in the production and trafficking of illicit drugs.

74.   Another previous study examined perfect landings in gymnastics.

75.   However, the study did not examine the alternative of not seeing a doctor at all.

76.   Nelson said the continuing study will examine the long-term effects of the procedure, and results may be seen in two to three years.

77.   Richardson conceded the study did not examine the economic harm and job losses caused by imports.

78.   That is also true of fish and chicken cooked at high temperatures, although the study did not examine those.

79.   The computer study examined all federal court convictions during the two years, comparing cases where the seriousness of the crime and criminal histories were equal.

80.   The new studies examined people who had not developed the mind-robbing ailment at the outset and suggested no effect from pills.