Beard, E., Aveyard, P., Brown, J., & West, R. (2012). Assessing the association between the use of NRT for smoking reduction and attempts to quit smoking using propensity score matching. Elsevier.
Citação norma ChicagoBeard, E., P. Aveyard, J. Brown, and R. West. Assessing the Association Between the Use of NRT for Smoking Reduction and Attempts to Quit Smoking Using Propensity Score Matching. Elsevier, 2012.
Citação norma MLABeard, E., et al. Assessing the Association Between the Use of NRT for Smoking Reduction and Attempts to Quit Smoking Using Propensity Score Matching. Elsevier, 2012.
Nota: a formatação da citação pode não corresponder 100% ao definido pela respectiva norma.