""When the BMJ published an extraordinary article documenting the censorship of one of its articles by Facebook, it lifted the curtain on a clandestine practice performed thousands of times a day. According to the medical journal, a peer-reviewed piece documenting an investigation into clinical trial research practices occurring at Ventavia, a contracted company which assisted with the main Pfizer covid-19 vaccine trial, was labelled as “partly false” and suppressed on the network.""