“Neuroprotective potential of phytochemicals” - G. Phani Kumar and Farhath Khanum - Jul-Dec 2012 - https://www.ncbi.nlm.nih.gov/pmc/articles/PMC3459459/

“Identification of medicinal plants of Urmia for treatment of gastrointestinal disorders” - https://www.sciencedirect.com/science/article/pii/S0102695X14000477?via%253Dihub&sa=D&ust=1583507878228000&usg=AFQjCNF-MFACFtSZ3dY3c7AlBWWCZT3AKQ

“The Benefits of California Poppy (Eschscholzia californica)” - http://www.positivehealth.com/article/herbal-medicine/the-benefits-of-california-poppy-eschscholzia-californica

“Tinnitus is the result of the brain trying, but failing, to repair itself” - Georgetown University Medical Center - Jan 2011 - https://www.sciencedaily.com/releases/2011/01/110112122504.htm

“Free radical production and ischemic brain damage: influence of postischemic oxygen tension” - Agardh CD and others - https://www.ncbi.nlm.nih.gov/pubmed/2058415

“B Vitamins and the Brain: Mechanisms, Dose and Efficacy-A Review” - David O. Kennedy - Feb 2016 - https://www.ncbi.nlm.nih.gov/pmc/articles/PMC4772032/

“Mapping cortical hubs in tinnitus.” - Winfried Schlee and others - Nov 2009 - https://bmcbiol.biomedcentral.com/articles/10.1186/1741-7007-7-80

“Intracranial Mapping of a Cortical Tinnitus System using Residual Inhibition” - WilliamSedley and others - Apr 2015 - http://www.cell.com/current-biology/abstract/S0960-9822(15)00278-X

“Neurotoxicity of General Anesthetics: Cause for Concern?” - Misha Perouansky and Hugh C. Hemmings - Dec 2010 - https://www.ncbi.nlm.nih.gov/pmc/articles/PMC2784653/

“Potential Links between Impaired One-Carbon Metabolism Due to Polymorphisms, Inadequate B-Vitamin Status, and the Development of Alzheimer's Disease.” - Troesch B and others - Dec 2016 - https://www.ncbi.nlm.nih.gov/pubmed/27973419

“Protective effect of Hibiscus sabdariffa against serum/glucose deprivation-induced PC12 cells injury” - Elham Bakhtiari, Azar Hosseini and Seyed Hadi Mousavi - May-Jun 2015 - https://www.ncbi.nlm.nih.gov/pmc/articles/PMC4469964/

“What’s the difference between an antioxidant and a phytochemical?” - Karen Collins - Nov 2015 - http://www.aicr.org/press/health-features/health-talk/2015/11-november/phytochemicals-antioxidants-health.html

“Gymnema sylvestre for Diabetes: From Traditional Herb to Future's Therapeutic” - https://www.google.com/url?q=https://www.ncbi.nlm.nih.gov/pubmed/27834124

“Neuroanatomical abnormalities in chronic tinnitus in the human brain” - Peyman Adjamian and others - Sep 2014 - https://www.ncbi.nlm.nih.gov/pmc/articles/PMC4148481/

“B12 Deficiency May Be More Widespread Than Thought” - Judy McBride - Aug 2000 - https://www.ars.usda.gov/news-events/news/research-news/2000/b12-deficiency-may-be-more-widespread-than-thought/

“Phytochemical and Pharmacological Properties of Gymnema sylvestre: An Important Medicinal Plant” - https://www.ncbi.nlm.nih.gov/pmc/articles/PMC3912882

“Ayurvedic medicinal plants for Alzheimer's disease: a review” - https://www.ncbi.nlm.nih.gov/pmc/articles/PMC3506936

“LOW Vitamin B12 Levels May Lead To Brain Shrinkage, Cognitive Problems” - Paul Minn - Sep 2011 - https://www.aan.com/PressRoom/Home/PressRelease/986

“Review: Alzheimer's amyloid beta-peptide-associated free radical oxidative stress and neurotoxicity.” - Varadarajan S and others - Jun 2000 - https://www.ncbi.nlm.nih.gov/pubmed/10940225

“When does age-related cognitive decline begin?” - Timothy A. Salthouse - Feb 2009 - https://www.ncbi.nlm.nih.gov/pmc/articles/PMC2683339/

“Free radicals, antioxidants and functional foods: Impact on human health” - V. Lobo and others - Jul-Dec 2010 - https://www.ncbi.nlm.nih.gov/pmc/articles/PMC3249911/