# A longitudinal study of protective factors against substance use in early adolescence. An ecological approach

> Research article (International Journal of Drug Policy, 2023) · cited 11× · AI/ML

**Wikidata**: [openalex:W4317761818](https://www.wikidata.org/wiki/openalex:W4317761818)  
**Source**: https://4ort.xyz/entity/a-longitudinal-study-of-protective-factors-against-substance-use-in-early-adolescence-an-ecological-approach