About the Authors

Yuqian Yan

Roles Conceptualization, Data curation, Formal analysis, Funding acquisition, Investigation, Methodology, Project administration, Validation, Visualization, Writing – original draft, Writing – review & editing

Affiliation Institute for Complementary and Integrative Medicine, University Hospital Zurich and University of Zurich, Zurich, Switzerland

Jesús López-Alcalde

Roles Conceptualization, Investigation, Methodology, Project administration, Writing – review & editing

Affiliations Institute for Complementary and Integrative Medicine, University Hospital Zurich and University of Zurich, Zurich, Switzerland, Faculty of Medicine, Universidad Francisco de Vitoria (UFV), Madrid, Spain, Unidad de Bioestadística Clínica, Instituto Ramón y Cajal de Investigación Sanitaria (IRYCIS), CIBERESP, Hospital Universitario Ramón y Cajal, Madrid, Spain

Elena Stallings

Roles Investigation, Writing – review & editing

Affiliation Unidad de Bioestadística Clínica, Instituto Ramón y Cajal de Investigación Sanitaria (IRYCIS), CIBERESP, Hospital Universitario Ramón y Cajal, Madrid, Spain

Elena Jimenez Tejero

Roles Investigation, Writing – review & editing

Affiliations Faculty of Medicine, Universidad Francisco de Vitoria (UFV), Madrid, Spain, Unidad de Bioestadística Clínica, Instituto Ramón y Cajal de Investigación Sanitaria (IRYCIS), Hospital Universitario Ramón y Cajal, Madrid, Spain

Claudia M. Witt

Roles Investigation, Resources, Writing – review & editing

Affiliations Institute for Complementary and Integrative Medicine, University Hospital Zurich and University of Zurich, Zurich, Switzerland, Charité –Universitätsmedizin Berlin, Corporate Member of Freie Universität Berlin, Humboldt-Universität zu Berlin, and Berlin Institute of Health, Institute of Social Medicine, Epidemiology and Health Economics, Berlin, Germany

Jürgen Barth

Roles Conceptualization, Formal analysis, Investigation, Methodology, Project administration, Supervision, Validation, Visualization, Writing – review & editing

mail@juergen-barth.de

Affiliation Institute for Complementary and Integrative Medicine, University Hospital Zurich and University of Zurich, Zurich, Switzerland

Competing Interests

The authors have declared that no competing interests exist.