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But their children regard themselves primarily as Americans even as they embrace some Egyptian traditions and values . The configuration of the schema rules defines the xpaths to the elements in the metadata record from which they are indexed . It allows doctors to halt treatment against the wishes of a patient 's family when they think its continuation would be futile and unethical . Doctors recommend a daily aspirin for most people who've had a heart attack . The majority of people who've had a heart attack take cholesterol-lowering medications — drugs that help lower the risk of a second heart attack .