premise: Where the Proprietary Information has not been or cannot be reduced to written form at the time of disclosure and such disclosure is made orally or visually, complete written summaries of all proprietary aspects of any such oral or visual disclosures shall have been delivered to the receiving Party within 20 calendar days of said oral or visual disclosures; provided, however, that Proprietary Information that is not marked or reduced to writing is protected under this Non-Disclosure Agreement if the context and manner in which such Proprietary Information is disclosed would indicate to a reasonable person familiar with the pharmaceutical industry that such Proprietary Information can be reasonably expected to be treated as confidential. 