Changing prescriber does not reset anything, and people discover that the hard way.

An inconclusive account is useful if it stops the next person mistaking a story for a controlled comparison.

Written confirmation email after every phone call. Cheapest insurance there is.

File early. The window is shorter than people think and it starts at the transaction.

This board overrates bloodwork. A number moving is not the outcome you wanted.

Test one thing at a time. It feels slower and it is the only way to learn anything.