HHS-OASH-2026-0397-2538
https://www.regulations.gov/comment/HHS-OASH-2026-0397-2538

My brother, after using his cell phone to his ear daily and extensively for a number of years developed a tumor under his right ear.  It was quite large and he had it removed.  It was non- malignant thankfully.  I think he started using speaker phone after that.