ESPANOL: Cannabis Sativa causes and consumption in adolscents from 15 to 19 years old. Otavalo Ecuador 2020-2021. lauinvestiga [Internet]. 2021 Dec. 30 [cited 2026 Jul. 26];8(2):73-90. Available from: https://revistasojs.utn.edu.ec/index.php/lauinvestiga/article/view/618