In a subsequent third phase of testing (new stimulus phase), 2 novel stimuli were introduced and mice were asked to undergo a second round of discrimination testing with these stimuli. (psychogenics.com)
They sent letters to the commission in 2005 and 2006 and have received no response or explanation why the second and third phases of their master plan didn't receive approval. (suffolktimes.timesreview.com)
You get to reintroduce these foods to your meals to a limited extent once you reach third phase. (dietselfhelp.com)