TY  - RPRT
TI  - Advances and challenges for the expanded programme on immunization.
AU  - F T Cutts
PY  - 1998
DO  - 10.1093/oxfordjournals.bmb.a011700
UR  - https://pubmed.ncbi.nlm.nih.gov/9830209/
ID  - 9830209
ER  -