At the writing of this book, the United States is in the midst of an intense public debate concerning a widely perceived need for reform of the Health Care Delivery System. The reform is primarily aimed at the provision of medical insurance to a large segment of the population currently deprived of that coverage and to the reduction of the escalating costs of medical care. Solutions to the existing problems have been elusive because the causes of the dilemma are multifactorial, complex, and diffucult to identify clearly. There is, however, general consensus that the use and abuse of...