The bat coronavirus RmYN02 is characterized by a 6-nucleotide deletion at the S1/S2 junction, and its claimed PAA insertion is highly doubtful https://arxiv.org/abs/2012.00627
The genetic structure of SARS‐CoV‐2 does not rule out a laboratory origin https://onlinelibrary.wiley.com/doi/10.1002/bies.202000240
D.R.A.S.T.I.C. Research 