@article{Toews2017, author = "Ingrid Toews and Nadine Binder and Robert F. Wolff and Guenes Toprak and Erik von Elm and Joerg J. Meerpohl", title = "{Characteristics of the study sample for the cross-sectional study part.}", year = "2017", month = "4", url = "https://plos.figshare.com/articles/dataset/Characteristics_of_the_study_sample_for_the_cross-sectional_study_part_/4950866", doi = "10.1371/journal.pone.0176489.t001" }