“CURRENT STATUS OF SEASONAL INFLUENZA VACCINATION AND ASSOCIATED FACTORS AMONG CHILDREN AGED 6 MONTHS TO UNDER 5 YEARS AT PHU THO PROVINCIAL CHILDREN’S HOSPITAL IN 2022”. Vietnam Journal of Community Medicine 67, no. CĐ7-Trường ĐH Y Dược Hải Phòng (July 6, 2026). Accessed September 9, 2026. https://tapchiyhcd.vn/index.php/yhcd/article/view/5640.