Pfizer Inc. on Instagram: "🔎Biomarkers are clues that can help predict how a cancer will respond to treatment, potentially unlocking ways to deliver more targeted, effective care. 🧬To learn more, we asked a scientist at Pfizer Oncology, Khrystyna North, to explain cancer biomarkers to three different audiences: her friends and family, a physician, and another scientist. 🎥Click the link in our bio to watch the full video."