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*Correspondence: Hao Yu, [email protected] These authors have contributed equally to this work This article was submitted to Schizophrenia, a section of the journal Frontiers in Psychiatry Disclaimer All claims expressed in this article are solely those of the authors and do not necessarily represent those of their affiliated organizations, or those of the publisher, the editors and the reviewers

If maintenance records reveal lapses in these procedures, it could be grounds to question the test results

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For example, recommending related products or offering coupons based on purchase records can enhance consumer satisfaction and loyalty