Foreign Materials in Blood Samples of Recipients of COVID-19 Vaccines. International Journal of Vaccine Theory, Practice, and Research , [S. l.], v. 2, n. 1, p. 249–265, 2022. DOI: 10.56098/ijvtpr.v2i1.37. Disponível em: https://www.ijvtpr.com/index.php/IJVTPR/article/view/37.. Acesso em: 21 apr. 2026.