Question: is this a 2) strong advice, 1) weak advice 0) no advice?

With 26 weeks of randomized continuation treatment, the duration of the phase referring to the confirmatory hypothesis test is consistent with Kupfer’s (1991) widely accepted model of the long-term course of depression as well as with findings from trials investigating the optimal length of continuation therapy (Prien and Kupfer, 1986; Reimherr, Amsterdam, Quitkin, Rosenbaum, Fava, Zajecka, Beasley, Michelson, Roback and Sundell, 1998), so that the efficacy of WS® 5570 in preventing relapse can be validly assessed. 
user
This is no advice
assistant