Effect of the COVID-19 pandemic on children: an analysis of the situation through a cross-sectional study. - Tuong-Vy Vo-Thi; Ngoc-Bich Nguyen-Thi; Duy-Duyen Dao-Thi; Nga Le-Thi; Nguyen-Ha Nguyen-Vu; Hoang-Khoa Vo (GeSec: Revista de Gestao e Secretariado, 2023)