Charles Rosenberg, in Disease and Social Order in America: Perceptions and Expectations:

A minority of early twentieth-century physicians did protest the tendency toward mechanistic reductionsism in diagnosis and treatment. Their successors have continued. But such warnings could not compete with the laboratory's allure; they still cannot.

Ahh, the laboratory's allure. Helena invoked it this morning as a reason for doing an MD. But unlike the physicians that this article implicitly criticizes, I think she has a balanced view of diagnosis and treatment.