"E-cigarettes and similar devices should be manufactured to the highest quality standards and marketed responsibly to ensure only the safest possible products are sold in Australia.

Smoking status was then assessed at the time of the interview to determine the rates of successful quitting during the most recent quit attempt, comparing the three groups: (1) e-cigarettes only; (2) NRT only; and (3) no cessation aids. The total sample size was 5,863.

The paper defends its ethical standards by arguing that it "was consistent with Facebook's Data Use Policy, to which all users agree prior to creating an account on Facebook, constituting informed consent for this research."

At the time the experiment was initiated in 1932, the treatment for syphilis involved toxic drugs. However, by the 1940's, penicillin was readily available as a treatment for this infection. Nevertheless, the study continued and penicillin was not made available to these black men. Nor were they informed about the availability of the medicine or even of what disease they actually had.

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