| Publication Type: | Journal Article |
| Year of Publication: | 1984 |
| Authors: | D. R. Roberts, Peyton, E. L., Pinheiro, F. P., Balderama, F., Vargas, R. |
| Journal: | Bulletin of the Pan American Health Organization |
| Volume: | 18 |
| Issue: | 4 |
| Pagination: | 337–350 |
| Full Text |
| Publication Type: | Journal Article |
| Year of Publication: | 1984 |
| Authors: | D. R. Roberts, Peyton, E. L., Pinheiro, F. P., Balderama, F., Vargas, R. |
| Journal: | Bulletin of the Pan American Health Organization |
| Volume: | 18 |
| Issue: | 4 |
| Pagination: | 337–350 |
| Full Text |