HHS-OASH-2026-0397-6757 https://www.regulations.gov/comment/HHS-OASH-2026-0397-6757 Please find enclosed a letter from W. Lee Cowden, MD, a board-certified cardiologist who himself experienced cardiac and other symptoms from wireless radiation exposure from a 5G antenna outside a window of a B&B, and had to retire from seeing patients. This also then sensitized him to satellite exposures, requiring installation of a mental roof to block the exposures. Dr. Cowden's wife had a similar experience with cardiac effects from exposure to a home wireless system.