EFFECTS OF INADEQUATE COLD CHAINMANAGEMENT ON VACCINE EFFICACY IN NIGERIA IMMUNIZATION PROGRAMS. GACOPA Medical Journal , [S. l.], v. 2, n. 1, p. 1–18, 2026. DOI: 10.71396/p668qn80. Disponível em: https://journals.gacopaworld.org/index.php/1/article/view/22. Acesso em: 2 nov. 2026.