Pharmaceutical Advice Item Entry Content Module (warnings) Verifies the Pharmaceutical Advice Item Entry Content Module along chapter "3.7.1 Structure of a Pharmacy Pharmaceutical Advice Document" In the case where the pharmaceutical adviser of a prescription item is different from the author of the pharmaceutical advice document, the pharmaceutical adviser MAY be represented by the <performer> element of the entry and the author SHALL be represented in the author Element of the document. The performer is provided. It seems that the pharmaceutical adviser of a prescription item is different from the author of the pharmaceutical advice document.