Cárdaba, M. M., Rafael Carrasco Polaino, and Ubaldo Cuesta Cambra. “Twitter Networks’ Centrality Measures of the Association of Health Journalist (ANIS): The Case of Vaccines - Introduction and Theoretical Framework”. European Journal of Social Sciences, vol. 3, no. 2, Oct. 2020, pp. 12-23, doi:10.26417/462lry32o.