1. Obstetrics and Gynecology; University Hospital Germans Trias i Pujol; Badalona Spain
2. Free time independent Cochrane reviewer, Biocruces Health Research Institute; Cruces University Hospital; Bilbao Spain
3. Department of Dietetics and Nutrition; Florida International University / Global Nutrition Professionals; Miami Florida USA
4. Thyroid Research Group, Division of Infection and Immunity; Cardiff University; Cardiff UK
5. Iberoamerican Cochrane Centre, Biomedical Research Institute Sant Pau (IIB Sant Pau); Hospital de la Santa Creu i Sant Pau; Barcelona Spain
6. Department of Preventive Medicine and Public Health; University of the Basque Country; Leioa Spain
7. Yealth Network; Beijing Yealth Technology Co., Ltd; Beijing China
8. Institute of General Practice; Medical Faculty of the Heinrich Heine University Düsseldorf; Düsseldorf Germany