How to find future ecstasy-users: Targeted and snowball sampling in an ethically sensitive context von Vervaeke, Hylke K.E, Korf, Dirk J, Benschop, Annemieke, van den Brink, Wim

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Predicting Ecstasy Use among Young People at Risk: A Prospective Study of Initially Ecstasy-Naive Subjects von Vervaeke, Hylke K. E., Benschop, Annemieke, Van Den Brink, Wim, Korf, Dirk J.

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The Role of Peers in the Initiation and Continuation of Ecstasy Use von Vervaeke, Hylke K. E., van Deursen, Lonneke, Korf, Dirk J.

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Long-term ecstasy use and the management of work and relationships von Vervaeke, Hylke K.E., Korf, Dirk J.

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The Netherlands XTC Toxicity (NeXT) study: objectives and methods of a study investigating causality, course, and clinical relevance von De Win, Maartje M.L., Jager, Gerry, Vervaeke, Hylke K.E., Schilt, Thelma, Reneman, Liesbeth, Booij, Jan, Verhulst, Frank C., Den Heeten, Gerard J., Ramsey, Nick F., Korf, Dirk J., Van Den Brink, Wim

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