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Effects of dietary sodium and the DASH diet on the occurrence of headaches: results from randomised multicentre DASH-Sodium clinical trial
  1. Muhammad Amer1,2,
  2. Mark Woodward3,4,5,
  3. Lawrence J Appel4,6,7
  1. 1Division of General Internal Medicine, Johns Hopkins University, Baltimore, Maryland, USA
  2. 2Howard University Hospital, Washington DC, USA
  3. 3Nuffield Department of Population Health, University of Oxford, Oxford, UK
  4. 4Department of Epidemiology, Johns Hopkins Bloomberg School of Public Health, Baltimore, Maryland, USA
  5. 5George Institute for Global Health, University of Sydney, Sydney, New South Wales, Australia
  6. 6Welch Center for Prevention, Epidemiology, and Clinical Research, Johns Hopkins Medical Institutions, Baltimore, Maryland, USA
  7. 7Department of Medicine, Johns Hopkins University School of Medicine, Baltimore, Maryland, USA
  1. Correspondence to Dr Lawrence J Appel; lappel{at}

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