system: You are a contract-analysis assistant performing a span-extraction task. You are given an excerpt from a commercial contract and the name of a clause type to locate within it.

Return the exact text of the requested clause, copied verbatim from the excerpt — identical wording and punctuation, with no paraphrasing, summarising, explanation, or added commentary.

The excerpt is one window of a much longer contract and often will not contain the requested clause. If the requested clause does not appear in this excerpt, respond with exactly: Not found.

Output only the extracted clause text, or the exact string `Not found.` — nothing else.

user: Contract excerpt:
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Approvals that are based on any Xencor Technology. 4.3 Pharmacovigilance and Medical Inquiries. 4.3.1 Pharmacovigilance. Subject to Section 4.1.1, Aimmune, as the holder of the Product Approvals, shall be responsible for the collection, review, assessment, tracking and filing of information related to adverse events associated with the Product (whether or not Product Approval has been achieved), in each case in accordance with Applicable Law and this Agreement (and Aimmune shall, in the Development and Commercialization of the Product, record, investigate, summarize, notify, report and review all adverse events in accordance with Applicable Law). 4.3.2 Medical Inquiries for the Product. Following the Effective Date, subject to Section 4.1.1, Aimmune shall be responsible for handling all medical questions or inquiries in each country, including all Product Complaints, with regard to any Product distributed or sold by or on behalf of Aimmune (or any of the other Aimmune Agreement Entities), in each case in accordance with Applicable Law and this Agreement. 4.3.3 Regulatory Authority Communications. In addition to its obligations under this Agreement, each Party shall disclose to the other Party (and each Party shall have the right to subsequently disclose to its Affiliates and subcontractors and licensees, specifically those licensees of the Product in the case of Aimmune, who are bound by obligations of confidentiality substantially consistent with those in ARTICLE 12) the following regulatory information: All material information pertaining to material adverse or potentially material adverse actions taken or that may be taken by Regulatory Authorities, in connection with the Product or Antibody, including any notice, audit notice, notice of initiation by Regulatory Authorities of investigations, detentions, seizures or injunctions concerning the Product or Antibody, notice of violation letter (i.e., an untitled letter), warning letter, service of process or other equivalent 18 Source: AIMMUNE THERAPEUTICS, INC., 8-K, 2/5/2020 communication or action. Without limiting the generality of the foregoing, each Party shall promptly, but in any event within [***] ([***]) Business Days, inform the other Party of any material adverse or potentially material adverse actions taken or that may be taken by Regulatory Authorities in connection with the Product or Antibody, including any notice, audit notice, notice of initiation by Regulatory Authorities of investigations, detentions, seizures or injunctions concerning the Product or Antibody, notice of violation letter (i.e., an untitled letter), warning letter, service of process or other equivalent communication or action. 4.3.4 Recall, Withdrawal, or Market Notification of Product. In the event that any Governmental Authority threatens or initiates any action to remove the Product from the market, Aimmune shall notify Xencor of such communication promptly, but in no event later than [***] ([***]) Business Days, after receipt thereof. Aimmune shall [***] any recall, withdrawal or market notification of the Product. As between the Parties, all costs and expenses associated with implementing a recall, withdrawal or market notification with respect to the Product shall be borne by [***]. ARTICLE 5 COMMERCIALIZATION 5.1 Commercialization. During the Term, as between the Parties, Aimmune shall be solely responsible for Commercializing the Product. Aimmune shall be responsible for one hundred percent (100%) of the expenses (including Pre-Marketing and other Commercialization expenses) incurred in connection with the Commercialization of the Product. 5.2 Aimmune's Performance. 5.2.1 Specific Commercialization Obligations. Without limiting the generality of the provisions of Section 5.1, in connection with the Commercialization of the Product by or on behalf of Aimmune or its Affiliates and Sublicensees hereunder: (a) Aimmune, itself or with or through its Affiliates and Sublicensees, shall (i) use Commercially Reasonable Efforts to Commercialize the Product in the Licensed Field throughout the Major Territory, (ii) represent the Product accurately and fairly, and (iii) not sell or distribute the Product in a bundle with other products at a discount that is not equitably allocated between Product and other products with which the Product is bundled. (b) Aimmune shall not (i) [***], or (ii) utilize deceptive, misleading or unethical business practices, in each case in the course of performing activities pursuant to this Agreement. (c) Aimmune, itself or with or through its Affiliates and Sublicensees, shall be solely responsible for (i) receiving, accepting and filling orders for the Product, (ii) handling all returns of the Product, (iii) controlling invoicing, order processing and collection of accounts receivable for the sales of the Product, and (iv) distributing and managing inventory of the Product. 19 Source: AIMMUNE THERAPEUTICS, INC., 8-K, 2/5/2020 5.3 Reports. Without limiting Aimmune's other reporting obligations hereunder, Aimmune shall, during the fourth Calendar Quarter of each Calendar Year after the First Commercial Sale of a
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Extract the exact clause related to "Parties" from the excerpt above.

assistant: Aimmune