A total of 63,396 postings (98% are replies) from 1,311 threads posted between 2 January and 14 March 2021 on a now-deleted public Facebook group, ‘Covid-19 Vaccine Side Effects’. The group was establ
The data and programs replicate tables and figures from \"Global sourcing and credit constraints\", by Shen. Please see the ReadMe file for additional details.
La vacuna de Pfizer-BioNTech fue la primera en ser autorizada para su administración tanto en Estados Unidos como Europa. Teniendo en cuenta eso, no sorprende que sea ésta precisamente la que cuenta c
