TY - JOUR T1 - Can Twitter give insights into international differences in Covid-19 vaccination? Eight countries’ English tweets to 21 March 2021 JO - El Profesional de la información UR - http://dx.doi.org/10.3145/epi.2021.may.11 PY - 2021/05/30 AU - Thelwall M ED - DO - DOI: 10.3145/epi.2021.may.11 PB - Ediciones Profesionales de la Informacion SL Y2 - 2024/09/19 ER -