Dr. Brennes helped to me win my appeal for Sleep Apnea after being denied and going back and forth with the VA for about 10 years. Finally submitted a Nexus Letter provided by Dr. Brennes to the VA and finally won the appeal. When I turned in the Nexus Letter to my VSO they stated it was one of the best Nexus letters they had received. Dr. Brennes was very helpful and up front about the process, would highly recommend.