"Called a visual diagnostic indicia" = you looking at a video on your monitor.
So, you don't have any independent clinical diagnosis to hand ?
"his neurological examination results were withheld"
You may be alluding to what "some doctors" are saying or "others fear" but really that's just Dr Ronny from Texas providing a Republican opinion.
Just look a little harder.
"Biden remains 'healthy, vigorous 80-year-old,' White House doctor says after physical exam
Neurological exam shows no brain disorders, motor weaknessBiden underwent an “extremely detailed” neurological exam that O’Connor said uncovered no findings consistent with a brain or central neurological disorder, such as a stroke, multiple sclerosis or Parkinson’s Disease.
The exam did show a “mild peripheral neuropathy” in both feet, O’Connor said. Biden did not demonstrate any motor weakness, the physician said, but showed a subtle difference in heat/cold sensation. O’Connor stressed that Biden’s symptoms haven’t progressed and have actually improved since his last exam."
