I agree, that our placebo group should heal slower than someone...

I agree, that our placebo group should heal slower than someone with a newly diagnosed ulcer going on compression bandaging for the first time.

But the question I am asking is “how plausible is it for the ulcer of placebo subjects to heal 50% after four weeks of placebo, given that they have already had at least a total of 6 weeks compression bandaging and exclude subjects whose ulcers healed more than 30% in the pre-trial screening?”