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The authors have been paid for consulting to lawyers who work for the tobacco industry. However, no payment was or will be contingent on the present paper.
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Frenk, H., Dar, R. Reward potentiation or behavioral activation? A comment on Donny et al.. Psychopharmacology 171, 472–473 (2004). https://doi.org/10.1007/s00213-003-1622-8
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DOI: https://doi.org/10.1007/s00213-003-1622-8