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  1. https://clinicaltrials.gov/study/NCT01572753

  2. https://clinicaltrials.gov/study/NCT01619345

  3. https://clinicaltrials.gov/study/NCT02014259

  4. https://clinicaltrials.gov/study/NCT02016911

  5. https://clinicaltrials.gov/study/NCT02249871

  6. https://clinicaltrials.gov/study/NCT02172313

  7. https://clinicaltrials.gov/study/NCT02877355