TY  - RPRT
TI  - A better system for polio vaccination in developing countries?
AU  - S C Arya
PY  - 1980
DO  - 10.1136/bmj.281.6245.943-a
UR  - https://pubmed.ncbi.nlm.nih.gov/7427516/
ID  - 7427516
ER  -