[Decrease in early adolescent illegal substance use in the Veneto region].
Mazzardis
Sonia
S
Vieno
Alessio
A
Furegato
Martina
M
Santinello
Massimo
M
Mirandola
Massimo
M
D000293:Adolescent; D005260:Female; D006801:Humans; D007558:Italy; D008297:Male; D019966:Substance-Related Disorders / Q000453:epidemiology* / Q000517:prevention & control*