, Singh, A., Sharma, I., Singh, L., Sharma, J., Borthakar, B., … Saxena, S. (1969). Epigenetic deregulations of Wnt/β-catenin and transforming growth factor beta-Smad pathways in esophageal cancer: Outcome of DNA methylation. Journal of Cancer Research and Therapeutics, 15(1), 192-203. https://doi.org/10.4103/jcrt.JCRT_634_17 (Original work published 1969)