An agent or approach intended to modify the relationship between tumor and host by modifying a host's biological response to tumor cells, with resultant therapeutic benefit. This includes agents or approaches which utilize or modify immunological mechanisms; naturally occurring or recombinantly produced regulatory molecules (e.g., cytokines, growth or differentiation factors); and monoclonal antibodies and their derivatives.

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The Pituitary Patient Resource Guide Sixth Edition is now available! Be one of the first to have the most up-to-date information. The Pituitary Patient Resource Guide a one of a kind publication intended as an invaluable source of information not only for patients but also their families, physicians, and all health care providers. It contains information on symptoms, proper testing, how to get a diagnosis, and the treatment options that are available. It also includes Pituitary Network Association's patient resource listings for expert medical care.

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