GREEN, H. J.; O’SHEA, O. K.; PHILPOTT, H. L.; NEWLAND, N. An exploratory, randomised, crossover study to investigate the effect of nicotine on cognitive function in healthy adult smokers who use an electronic cigarette, after a period of smoking abstinence: study protocol. International Journal of Clinical Trials, [S. l.], v. 9, n. 2, p. 136–142, 2022. DOI: 10.18203/2349-3259.ijct20221114. Disponível em: https://www.ijclinicaltrials.com/index.php/ijct/article/view/584. Acesso em: 21 oct. 2025.