About the Authors

Panagiotis N Papanikolaou, Georgia D Christidi, John P. A Ioannidis
Department of Hygiene and Epidemiology, University of Ioannina School of Medicine, Ioannina, Greece

John P. A Ioannidis
Institute for Clinical Research and Health Policy Studies, Department of Medicine, Tufts University School of Medicine, Boston, Massachusetts, United States of America

Corresponding Author


Competing Interests

The authors have declared that no competing interests exist.

Author Contributions

PNP, GDC, and JPAI designed the study. PNP and JPAI analyzed the data. PNP, GDC, and JPAI contributed to writing the paper.