Posttreatment attrition and its predictors, attrition bias, and treatment efficacy of the anxiety online programs.
Ali M Al-AsadiBritt KleinDenny MeyerPublished in: Journal of medical Internet research (2014)
Australian and New Zealand Clinical Trials Registry ACTRN121611000704998; http://www.anzctr.org.au/trial_view.aspx?ID=336143 (Archived by WebCite at http://www.webcitation.org/618r3wvOG).