Analysis of Providing Covid-19 Vaccination to the Elderly in the Work Area of the Sematang Borang Health Center. HEALTH CARE: JURNAL KESEHATAN, [S. l.], v. 11, n. 2, p. 292–305, 2022. DOI: 10.36763/healthcare.v11i2.246. Disponível em: https://jurnal.payungnegeri.ac.id/index.php/healthcare/article/view/246. Acesso em: 13 jan. 2026.