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Gevorg Tamamyan on the Visionary Leadership of Thomas L. Harrison and the Expanding Global Impact P53 Inc.
Nov 17, 2025, 14:35

Gevorg Tamamyan on the Visionary Leadership of Thomas L. Harrison and the Expanding Global Impact P53 Inc.

Gevorg Tamamyan, Editor-in-Chief and Co-Founder of OncoDaily, shared on LinkedIn:

Thomas L. Harrison is one of the most accomplished figures in global healthcare communications.

As Chairman Emeritus of Diversified Agency Services (DAS), a division of Omnicom Group Inc., he led the world’s largest network of marketing services and communications companies overseeing more than 5,000 clients worldwide.

P53 Inc. is a U.S.-based innovator in medical media, scientific publishing, and research — proud home of OncoDaily™, OncoDaily TV, OncoDaily Medical Journal, CancerWorld Magazine, OncoDaily Magazine, OncoDaily IO, OncoDaily GI, Hemostasis Today, Fertility News, Boston Institute for Global Rankings (BIGR), Global Cancer Movement, Yvonne Award, OncoThon™, World Health Voices and VIRO.

With a mission to be the voice of medicine and a vision to become the fastest growing, most reliable, and innovative global source of medical information — where “everyone has a space to shape the future of medicine and healthcare” — P53 Inc. continues to expand its leadership across oncology, hemostasis, fertility, and biomedical innovation.

Within five years, P53 Inc. plans to evolve into a global multichannel healthcare media technology company operating 50 active brands across key medical verticals.”

Read the full announcement in OncoDaily.

Gevorg Tamamyan on the Visionary Leadership of Thomas L. Harrison and the Expanding Global Impact P53 Inc.

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