Ask, and It Shall be Given You

These days, with “managed competition” and “cost control” reverberating in our ears, we must remind ourselves that the modern practice of what I call restorative medicine must often rely heavily on laboratory procedures, frequently expensive, for diagnosis and treatment. For example, experts now insist that the specific cause of Cushing syndrome can no longer be firmly established without catheterization of both petrosal sinuses, usually accompanied by measurement of the response of plasma ACTH to …