Linh, N.T. , Anh, N.T.D. , Lịch, T.T. , Quyên, L.T.N. , Thuyên, L.T. and Hóa, M. 2024. Some characteristics of delaying booster shots for children from 12 to 36 months old in the Expanded programme on immunization at Thu Duc district, Ho Chi Minh City in 2020. Vietnam Journal of Preventive Medicine. 33, 7 (Mar. 2024), 78–85. DOI:https://doi.org/10.51403/0868-2836/2023/1460.