Dr McCullough is an eminent US cardiologist. Read his credentials here:
https://www.cardiometabolichealth.org/peter-mccullough.html
and here: https://www.heartplace.com/dr-peter-a-mccullough

From henrymakow.com

https://www.henrymakow.com/2021/06/covid-vaccines-have-already-killed.html

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Peter McCullough, MD testifies to Texas Senate HHS Committee

Vaccination Centers are Empty:

Monica Smit interviews Peter A. McCullough, MD, MPH, FACC, FACP, FAHA, FASN, FNKF, FCRSAThere is hope and if Dr. Peter McCullough says that…you better believe it Let’s be clear…Dr. Peter is THE SCIENCE. So if you’re going to listen to science, he’s the man to listen to not the overpaid bureaucrats that claim to know. More segments coming…See more news www.reignitedemocracyaustralia.com.au
https://www.facebook.com/reignitedemocracyvic/videos/208251934497940/