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Technology, medicine & health, Part 2. The dilemmas of diagnostic certainty.

In Part 1 of this series we discussed how it is that our new understandings of biology at the molecular level are revealing to us unexpected complexities in those processes labeled as diseases. Here in Part 2 we examine some remarkable ultra-sensitive tools with which it is becoming feasible to clarify these complexities with degrees of certainty heretofore regarded as impossible.