Benefit-Risk of Therapies for Relapsing-Remitting Multiple Sclerosis: Testing the Number Needed to Treat to Benefit (NNTB), Number Needed to Treat to Harm (NNTH) and the Likelihood to be Helped or Harmed (LHH): A Systematic Review and Meta-Analysis. Mendes D, Alves C, Batel-Marques F CNS Drugs. 2016 Aug 18. PMID: 27538416. Abstract CommentRecommendBookmarkWatch