TY  - RPRT
TI  - Epidemiological experiences in over-developed sub-countries.
AU  - C Sanmartín
PY  - 1973
DO  - 10.4269/ajtmh.1973.22.291
UR  - https://pubmed.ncbi.nlm.nih.gov/4706425/
ID  - 4706425
ER  -