TY  - RPRT
TI  - Diphtheria: changing patterns in the developing world and the industrialized world.
AU  - A M Galazka
AU  - S E Robertson
PY  - 1995
DO  - 10.1007/bf01719955
UR  - https://pubmed.ncbi.nlm.nih.gov/7489768/
ID  - 7489768
ER  -