Adding the clinical framing, because it changes how the question reads. It is worth asking what the claim would look like if it were false. If nothing would look different, it is not a claim about the world and no amount of discussion will settle it.
Ask again with the specifics and you will get a better answer than this one.
Adding the clinical framing, because it changes how the question reads. The version of this that has an answer is narrower than the version being asked. Narrow it and it becomes tractable; leave it broad and the thread will produce nine confident and incompatible replies.
Dr.PathRoch said:The version of this that has an answer is narrower than the version being asked.
Adding a me-too, because a thread of one person's experience is not much use. Nothing to add that would improve it.
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Shop Reference StandardsDr.PathRoch said:The version of this that has an answer is narrower than the version being asked.
Adding the part of the answer the thread has not reached. Start from the measurement rather than the conclusion. Almost every disagreement here turns out to be two people measuring different things and comparing the numbers anyway.
Moderator note: two posts asking for a source have been merged into one. Please search the thread before asking again. No action needed from anybody.