Researchers conducted this systematic review with meta-analysis to study the association of dietary B vitamins’ intake with the risk of esophageal cancer (EC).
https://www.mdlinx.com/journal-summaries/b-vitamins-esophageal-cancer-meta-analysis/2018/11/13/7549080?spec=oncology
Dietary vitamin B intake and the risk of esophageal cancer: A meta-analysis