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The huddle of chemopreventive and chemotherapeutic phytochemicals in HNC. Schematic diagram showing phytochemicals with chemopreventive and chemotherapeutic properties in blue and green, respectively. Since most reports addressing the effect of herbal derivatives on HNC lacked HPV-related information, the data may not be directly applicable to HPV-negative HNC and require prior validation in HPV-negative HNC cells. Additionally, the HPV-positive HNC remains a poorly explored area.
