You don't need access to the paper, their methodology is explained in the SI: https://www.pnas.org/doi/suppl/10.1073/pnas.2614400123/suppl_file/pnas.2614400123.

You don't need access to the paper, their methodology is explained in the SI: https://www.pnas.org/doi/suppl/10.1073/pnas.2614400123/suppl_file/pnas.2614400123.sapp.pdf https://www.pnas.org/doi/suppl/10.1073/pnas.2614400123/suppl...