This definition appears very rarely
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We have 39 other definitions for PLU
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Samples in periodicals archive:
While there is considerable truth in this, unfortunately, the present level of understanding and actual capacity to make that happen remains in question.
So we would be wise to consider any explanation or conclusion as tentative -- useful for th time being -- limited by our present level of understanding -- open to further modifications and developments, etc.
Bissell -- From an enlightened surgeon comes a series of books, newsletters, and articles that will transcend the bounds of your present level of understanding of the interconnectedness of creation.