A study within the journal Vaccine[141] of commercials posted inside the a few months ahead of that identified that fifty four% of the anti-vaccine advertisements on Facebook were being put by just two organisations funded by very well-acknowledged anti-vaccination activists. Διαχείριση περιεχομένου ομάδας με ένα σύστημα έγκρισης Social media personalities, https://www.vng.gr/ta-ergaleia-pou-tha-se-voithisoun-sto-social-media-market/