Hasibuan, Anshari Saifuddin, Alvina Widhani, Sukamto Koesnoe, Suzy Maria, Evy Yunihastuti, Bramantya Wicaksana, Eka Ginanjar, and Sally Aman Nasution. 2025. “Benefit of Influenza Vaccination in Patients With Cardiovascular Disease”. Acta Medica Indonesiana 57 (4):552. http://www.actamedindones.org/index.php/ijim/article/view/3230.