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Table 5 Frequency of adverse effects

From: Lidocaine for systemic sclerosis: a double-blind randomized clinical trial

   Group  
   Placebo Lidocaine P value
   n % n %  
Frequency of adverse effects No adverse effect 9 75,0% 6 50,0% 0,400 (F)
  At least one effect 3 25,0% 6 50,0%  
  1. (F): Fisher exact test