Two doctors in my HMO referred me to him because my immune system is a mess and I was denied twice because he was outside the group. I am appealing that decision and I would like to include any information about him that would bolster my case why I need to see him vs. the Allergist/Immunologist I saw who knows zero about ME/CFS. Dr. Gupta was treating patients with Interferon and IVIG 20 years ago. I've found some papers but they are 10 years old and I have not found anything that might help me with this. Thanks.