[enziobodoni]

You are demonstrably wrong about the vitamin d. What if it was a specimen swap, and the lab screwed up and tested someone else's blood instead of yours? This happens.

[DocSavage]

The cheaper and faster the tests, the easier it is to reorder a confirmation (or two or three).

[enziobodoni]

And then what.... Rock Paper Scissors for which one is correct?