关于本章医疗保健体系的功能在于帮助人们保持健康的生活状态,应对慢性疾病或残疾,远离病魔,以及对抗死亡。对医疗保健低劣质量的代价进行研究表明,在美国,每年花费在医疗保健上的资金高达2万亿美元,超过30%的资金被过度使用、使用不当或是滥用在对于 About this chapter The health care system’s function is to help people maintain a healthy lifestyle, respond to chronic illness or disability, stay clear of illness, and fight death. Studies of the poor quality of care have shown that in the United States up to $ 2 trillion is spent on health care each year, over 30% is overused, misused, or misused