This is a very mind-boggling statistic from the paper entitled: "No Autopsies on COVID-19 Deaths: A Missed Opportunity and the Lockdown of Science" which is listed below including an image breaking down the meta-analysis of the near 10,000 papers on the PubMed website, as of April 26, 2020.
https://www.ncbi.nlm.nih.gov/pmc/articles/PMC7291342/
PDF: https://www.ncbi.nlm.nih.gov/pmc/articles/PMC7291342/pdf/jcm-09-01472.pdf
PDF Archive: https://web.archive.org/web/20210128223046/https://www.ncbi.nlm.nih.gov/pmc/articles/PMC7291342/pdf/jcm-09-01472.pdf
Local MES PDF: https://1drv.ms/b/s!As32ynv0LoaIiMdjOHu8ySK8rE8GNg?e=6Kq6lR
