Dr. Bongiorno's website can be found here - https://www.innersourcehealth.com. Dr. Bongiorno's latest books:
Holistic Solutions for Anxiety & Depression in Therapy: Combining Natural Remedies with Conventional Care
Put Anxiety Behind You: The Complete Drug-Free Program
How Come They’re Happy and I’m Not?: The Complete Natural Program for Healing Depression for Good. https://mybiohack.com/blog/peter-bongiorno-chronic-illness-mitochondria