Fig. 1From: Antiviral treatment perspective against Borna disease virus 1 infection in major depression: a double-blind placebo-controlled randomized clinical trialStudy design. The graphic illustrates the timeline of the two treatment periods and the follow-up, as well as the cross-over design of intervention by either amantadine or placebo and vice versa of the study, and indicates the number of patients who finished each period (N)Back to article page