If hydroxychloroquine and ivermectin don't work, why do other countries use it?

Clip: Dr. Hawkinson opines on hydroxychloroquine and ivermectin not working. Dr. McCullough states other countries use it.

Peter McCullough, MD, MPH, FACC, FCCP, FAHA, FNKF, FNLA, FCRSA
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Bringing together thought leaders in the healthcare field to evaluate and broaden opportunities to prevent suffering and death from the Covid-19 virus. The University of Kansas Health System turned down an invitation to participate in the roundtable discussion.

Speakers:
Dr. Peter McCullough
Dr. Pierre Kory
Dr. John Littell
Dr. Jesse Lopez

Resources:
COVID-19 Treatments: https://www.kshf.org/treatments
Timeline of HCQ and IVM: https://www.kshf.org/timeline