Reis Ferreira, J. M., Figueiredo, A., Boléo-Tomé, J. P. and Robalo Cordeiro, C. (2015) “Electronic Cigarette: Position of the Portuguese Society of Pneumology”, Acta Médica Portuguesa. Lisbon, Portugal, 28(5), pp. 548–550. doi: 10.20344/amp.6120.