Conflict of Interest

Abstract

Erik Eckhert designed the research study, analysed the data, wrote the paper. Ronald Witteles contributed essential tools, helped write the paper. Gregory Kaufman contributed essential tools, helped write the paper. Richard Lafayette contributed essential tools, helped write the paper. Sally Arai contributed essential tools, helped write the paper. Stanley Schrier contributed essential tools, helped write the paper. Michelle O’Shaughnessy contributed essential tools, helped write the paper. Michaela Liedtke designed the research study, helped write the paper. Erik Eckhert Ronald Witteles Gregory Kaufman Richard Lafayette Sally Arai Stanley Schrier Michelle O’Shaughnessy Michaela Liedtke Department of Medicine, Stanford University Hospital, Stanford, CA, USA. E-mail: mliedtke@stanford.edu