The Abdominal Pain Unit (APU). Study protocol of a standardized and structured care pathway for patients with atraumatic abdominal pain in the emergency department: A stepped wedged cluster randomized controlled trial

• Maria B. Altendorf ,

  Roles Writing – original draft, Writing – review & editing

  * E-mail: maria.altendorf@charite.de

  Affiliation Charité–Universitätsmedizin Berlin, Institute of Medical Sociology and Rehabilitation Science, Berlin, Germany

  https://orcid.org/0000-0003-3771-9783

  ⨯
• Martin Möckel,

  Roles Conceptualization, Funding acquisition, Resources, Supervision, Writing – review & editing

  Affiliation Emergency and Acute Medicine (CVK, CCM), Charité—Universitätsmedizin Berlin, Berlin, Germany

  ⨯
• Liane Schenk,

  Roles Conceptualization, Funding acquisition, Methodology, Project administration, Resources, Supervision, Writing – review & editing

  Affiliation Charité–Universitätsmedizin Berlin, Institute of Medical Sociology and Rehabilitation Science, Berlin, Germany

  ⨯
• Antje Fischer-Rosinsky,

  Roles Methodology, Project administration, Writing – review & editing

  Affiliation Health Services Research in Emergency Medicine; Emergency and Acute Medicine (CVK, CCM), Charité—Universitätsmedizin Berlin, Berlin, Germany

  ⨯
• Johann Frick,

  Roles Methodology, Writing – review & editing

  Affiliation Charité–Universitätsmedizin Berlin, Institute of Medical Sociology and Rehabilitation Science, Berlin, Germany

  ⨯
• Lukas Helbig,

  Roles Conceptualization, Writing – review & editing

  Affiliation Emergency and Acute Medicine (CVK, CCM), Charité—Universitätsmedizin Berlin, Berlin, Germany

  ⨯
• Dirk Horenkamp-Sonntag,

  Roles Writing – review & editing

  Affiliation Techniker Krankenkasse, Hamburg, Germany

  ⨯
• Dörte Huscher,

  Roles Conceptualization, Formal analysis, Methodology, Writing – review & editing

  Affiliation Charité–Universitätsmedizin Berlin, Institute of Medical Biometry and Clinical Epidemiology, and Berlin Institute of Health, Berlin, Germany

  ⨯
• Luisa Lichtenberg,

  Roles Supervision, Writing – review & editing

  Affiliation Techniker Krankenkasse, Hamburg, Germany

  ⨯
• Thomas Reinhold,

  Roles Conceptualization, Methodology, Writing – review & editing

  Affiliation Charité–Universitätsmedizin Berlin, Institute of Social Medicine, Epidemiology and Health Economics, Berlin, Germany

  ⨯
• Daniel Schindel,

  Roles Conceptualization, Methodology, Writing – review & editing

  Affiliation Charité–Universitätsmedizin Berlin, Institute of Medical Sociology and Rehabilitation Science, Berlin, Germany

  https://orcid.org/0000-0003-3351-8378

  ⨯
• Britta Stier,

  Roles Project administration, Writing – review & editing

  Affiliation Emergency and Acute Medicine (CVK, CCM), Charité—Universitätsmedizin Berlin, Berlin, Germany

  ⨯
• Hanna Sydow,

  Roles Writing – review & editing

  Affiliation Charité–Universitätsmedizin Berlin, Institute of Social Medicine, Epidemiology and Health Economics, Berlin, Germany

  ⨯
• Yves-Noel Wu,

  Roles Writing – review & editing

  Affiliation Health Services Research in Emergency Medicine; Emergency and Acute Medicine (CVK, CCM), Charité—Universitätsmedizin Berlin, Berlin, Germany

  ⨯
• Grit Zimmermann,

  Roles Supervision, Writing – review & editing

  Affiliation TMF—Technology, Methods, and Infrastructure for Networked Medical Research, Berlin, Germany

  ⨯
•  [ ... ],
• Anna Slagman

  Roles Conceptualization, Funding acquisition, Project administration, Resources, Supervision, Writing – review & editing

  Affiliation Charité–Universitätsmedizin Berlin, Institute of Social Medicine, Epidemiology and Health Economics, Berlin, Germany

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