| Original language | English (US) |
|---|---|
| Pages (from-to) | 293-305 |
| Number of pages | 13 |
| Journal | Bulletin of the Pan American Health Organization |
| Volume | 21 |
| Issue number | 3 |
| State | Published - Dec 1 1987 |
ASJC Scopus subject areas
- Public Health, Environmental and Occupational Health
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