Shorter, G. W., & Ferry, F. (2013). Recruitment and retention in internet based randomised trials. BioMed Central.
Chicago Stili AlıntıShorter, Gillian W., ve Finola Ferry. Recruitment and Retention in Internet Based Randomised Trials. BioMed Central, 2013.
MLA AlıntıShorter, Gillian W., ve Finola Ferry. Recruitment and Retention in Internet Based Randomised Trials. BioMed Central, 2013.
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