Richard Semelka has been in practice as a radiologist for 36 years and is a world authority in body MRI, safety in Radiology, and gadolinium toxicity. He is a leading published expert in Radiology for body MRI and gadolinium toxicity, and has made presentations at major meetings all over the world. Dr. Semelka has written over 370 peer-reviewed papers and 16 text-books. ScholarGPS has rated Dr. Semelka over his career as the #10 most accomplished scholar in MRI and #14 in medical imaging world-wide. He is the first doctor to publish on the entity of gadolinium deposition disease.