“The Herbal Drug, Polysaccharide K, has an Immunological and Synergistic Anticancer Effect with Cetuximab for Gastrointestinal Cancer in Vivo” (2013) Global Journal of Medical Research, 13(I3), pp. 1–5. Available at: https://medicalresearchjournal.org/index.php/GJMR/article/view/396 (Accessed: 1 February 2026).