| Main Author: | |
|---|---|
| Format: | Article |
| Language: | English |
| Published: |
Universidade de São Paulo
1994-01-01
|
| Series: | Revista de Saúde Pública |
| Online Access: | http://www.scielosp.org/scielo.php?script=sci_arttext&pid=S0034-89101994000300013 |
