revisionism, kv, is an unavoidable element of intellectual history, in any domain. if your expectation is for complete uniformity in clinical practice, as in art, or literature, or physics, it will be disappointed. variation speaks to perception, not efficacy.

in any case, the question is irrelevant. you might as well ask how one can continue to practice homeopathy, when skirts are shorter this year. what difference does it make?

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"The need to perform adjustments for covariates...weakens the findings." BMJ Clinical Evidence: Mental Health, (No. 11), p. 95.... It's that simple, guys: bad numbers make bad science.