71.   One observation that points to an environmental factor is the wide variation in breast cancer rates across the United States and from one country to another.

72.   Particularly for cancers of the kidney, liver and brain, she noted, general environmental factors may play a role.

73.   Previous studies have suggested that both genetic makeup and environmental factors are responsible for people becoming alcoholics.

74.   Questions involve farm management, pasture management and environmental factors.

75.   Rather, it interacts with other unknown genes and environmental factors, most of which are still unidentified, that trigger the disease.

76.   Reilly and other speakers have emphasized that despite growing evidence of genetic contributions to most diseases and to some behavioral traits, environmental factors are equally important.

77.   Scientists believe the ailment is partially inherited and partially caused by environmental factors.

78.   She points out that environmental factors, if they are important, probably do their mischief by damaging genes in breast cells, and that both need continuing study.

79.   Several international studies have suggested a dramatic decline in sperm counts, possibly a result of environmental factors.

80.   Several speakers at the hearings expressed concern that researchers might be playing down environmental factors because of real or perceived pressure from business.