From Gerard Boersma:

Dear Mark,

Recently a group of top experts (with some major names) peer-reviewed 
the Corman-Drosten paper, which has served as the basis for most PCR tests.
 
The scientists discovered at least ten "major scientific flaws," and deem the 
paper to be rubbish. They filed a retraction request at Eurosurveillance. 
This, 
of course, should have major consequences for the worldwide use of PCR tests.

  The review is here:
https://cormandrostenreview.com/report/
 
Gerard Boersma