Placental Transfer of Tetanus Toxoid Antibodies: is there an Impairment in Nigeria? . NIGERIAN JOURNAL OF PAEDIATRICS, [S. l.], v. 21, n. 4, p. 94–100, 2024. Disponível em: http://njpaediatrics.com/index.php/njp/article/view/1084.. Acesso em: 13 jun. 2026.