Spanish version of the Substance Use Risk Profile Scale: factor structure, reliability, and validity in Mexican adolescents.

To validate the Substance Use Risk Profile Scale (SURPS) in a sample of Mexican adolescents, this brief 23-item self-report questionnaire has been developed to screen four high-risk personality traits for substance misuse, to guide targeted approaches to prevention of addictions in adolescents. The scale has been previously validated in United Kingdom, Canada, Sri Lanka and China. A sample of 671 adolescents aged 11-17 completed a Spanish translation of the SURPS as well as other measures of personality and substance use.

Learning curve in a Western training center of the circumferential en bloc esophageal endoscopic submucosal dissection in an in vivo animal model.

Aim. Evaluate the feasibility to overcome the learning curve in a western training center of the en bloc circumferential esophageal (ECE-) ESD in an in vivo animal model. Methods.