5
The lot number on the vial matches the certificate, which at least rules out the easy problem.
The empirical answer seems settled. The explanation does not.
If the honest answer is that nobody knows, I would rather hear that than a plausible story.
Is the standard explanation correct, and if so, what is the evidence for it?
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8Same situation here, so I will follow this one. – marta_okonkwo 10 months ago
7Can you say which laboratory and which method? The answer changes with both. – kirsi_lahtinen 8 months ago
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