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.
शिकागो शैली (17वां संस्करण) प्रशस्ति पत्रBeard, E., P. Aveyard, J. Brown, और R. West. Assessing the Association Between the Use of NRT for Smoking Reduction and Attempts to Quit Smoking Using Propensity Score Matching. Elsevier, 2012.
एमएलए (9वां संस्करण) प्रशस्ति पत्रBeard, 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.
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