| Original language | English (US) |
|---|---|
| Pages (from-to) | 785-795 |
| Number of pages | 11 |
| Journal | Bulletin of the World Health Organization |
| Volume | 43 |
| Issue number | 6 |
| State | Published - 1970 |
All Science Journal Classification (ASJC) codes
- Public Health, Environmental and Occupational Health