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To calculate these risks , scientists must gather data to address several questions . To maintain professional relationships with authors , editors must be reasonably prescriptive in explaining their editorial changes . In addition to conducting experiments to see how breast cells behave when mingled with the compounds , researchers must try to reconstruct exposures that might have put black breast cancer patients at greater risk , Dr. Donovan said . To assess availability of health insurance , access to care , and costs as well as to prevent overuse , underuse , and misuse of health care services , tools must be available to measure patient outcomes and the quality of health care that patients receive.2 The tools and resources that AHRQ has developed can help decisionmakers by providing information they can use for comparison and as quality indicators to assess their own performance . Men are free to go places , women must remain .