B. Little Reginald, Uziel Orit, Correlating 13C Isotope in Oligomeric Proanthocyanidins with their Anticancer Properties, Journal of Cancer Genetics And Biomarkers, Volume 1, Issue 4, 2022, Pages 33-69, ISSN 2572-3030, https://doi.org/10.14302/issn.2572-3030.jcgb-22-4284. (http://oap-journals.comjcgb/article/1858) Keywords: Cancer; Metabolism; DNA; RNA and Protein; Guanosine