61.   Calcium, specifically calcium found in dairy foods, may play a significant role in the reduction of hypertension.

62.   Children, however, sense a less significant role in travel planning.

63.   Concerns about the deregulation played a significant role in sparking a wave of labor unrest in several European countries late last year.

64.   Congress and President Clinton have a significant role to play in this fight.

65.   Colt played a significant role in the industrial revolution.

66.   Cuba is one of the few developing nations to play a significant role in drug and biotechnology activities.

67.   Death and political storms would play significant roles in his life.

68.   Despite their absence during the Communist regime, both continued to play a significant role in Czechoslovak musical affairs.

69.   Do critics play a significant role in music history?

70.   ECNs play a significant role in the increasing volatility in many NASDAQ stocks.