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This study explored the possible negative impact of a specific ad feature—marijuana scenes—on adolescents’ perception of ad effectiveness. A secondary data analysis was conducted on adolescents’ evaluations of 60 anti-marijuana public service announcements (PSAs) that were a part of national and state anti-drug campaigns directed at adolescents. The major finding of the study was that marijuana scenes in anti-marijuana PSAs negatively affected ad liking and thought valence toward the ads among adolescents who are at higher levels of risk for marijuana use. This negative impact was not reversed in the presence of strong anti-marijuana arguments. The results may be used to partially explain the lack of effectiveness of the anti-drug media campaign. It may also help us design more effective anti-marijuana PSAs by isolating adverse elements in the ads that may elicit boomerang effects in the target population. Limitations of the study and future directions were discussed.

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Rationale:Spontaneous complete uterine rupture during gestation is rare and has no specific symptoms; however, it is a life-threatening event for both the fetus and mother. The rupture typically happens in labor and is uncommon before labor. Herein, we present the case of a woman, encountering complete rupture at third trimester followed by laparoscopic cornuostomy.Patient concerns:A 26-year-old woman presented with acute right lower abdominal pain at 33 weeks and 5 days of gestation.Diagnoses:We made a diagnosis of threatened uterine rupture.Intervention:Urgent cesarean section performed. Exploration of the uterine dehiscence wound demonstrated that the myometrium was completely ruptured at the primary laparoscopic surgical scar with a defect of 40 mm, and live birth and preservation of the uterus was achieved.Outcome:On the third day of operation, she had a good recovery and was discharged. After a 6-week postpartum follow-up, she displayed a good level of rehabilitation.Lessons:Pregnancy after laparoscopic cornuostomy should be treated as high-risk gestation and the rupture during gestation of the uterine scar should be suspected once lower abdominal pain occurred. Swift diagnosis and prompt intervention play a crucial role in saving the lives of the fetus and the mother.

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