Antunes, MónicaFonseca, SuzanaSimões, SusanaFranco, JoãoGallardo, EugeniaBarroso, Mário2023-02-232023-02-232022-11http://hdl.handle.net/10400.26/43938Poster apresentado no 20º Congresso Nacional de Medicina Legal e Ciências Forenses, 5ª Reunião da rede de Serviços médico-legais e forenses de Língua Portuguesa, Coimbra, 2022Over 96 million European adults are estimated to have consumed illicit drugs at some point in their lives, and cannabis is still the most consumed drug. The Portuguese data is obtained using surveys, but this type of study has several disadvantages, such as under or overestimation of consumption rates, which may lead to biased conclusions.Consequently, it is desirable that these studies are accompanied by drug monitoring in biological samples to circumvent the associated drawbacks.engCannabisHairLC-MS-MSconference object