Dear Dr Schwartz,
Thank you so very much for your referral to Dr Mark Stein four years ago.
My continual sinus infections I no longer have.
I have CVID and receive Gamma every three weeks by infusion.
Dr. Schwartz, if it was not for your extensive knowledge, I would have been subjected to illnesses all of my life.
Thank you for being such a fine doctor! You have made a difference in my life. I sincerely appreciate it.