Figure 2.

Kaplan-Meier plot of time to loss of therapeutic response. Loss of therapeutic response was defined as <30% reduction in Visual Analogue Scale pain score from pre-milnacipran exposure or a worsening of fibromyalgia requiring an alternative treatment. Circles represent censored patients.

Clauw et al. Arthritis Research & Therapy 2013 15:R88   doi:10.1186/ar4268
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