@article{Sauermann,
  author    = {Sauermann, Stefan},
  title     = {COVID-19 Questionnaires, Surveys, and Item-Banks: Overview of Clinical- and Population-Based Instruments},
  series = {SSRN},
  journal   = {SSRN},
  abstract  = {New COVID-19 related instruments are being rapidly developed around the world to collect patient- and population-based information. Heterogeneity between instruments limits comparability of results. The present study provides an overview of instruments and resources. We scoped the content domain on a selection of instruments using the Maelstrom taxonomy. Content of the instruments varied widely, from proximal measures (e.g., clinical symptoms, comorbidities, etc.) to distal measures such as political attitudes. We recommend that researchers reuse existing instruments to the greatest extent possible, and that they make results openly available in machine-readable format to facilitate reuse and maximize comparability of results across studies and countries.},
  subject      = {COVID19},
  language  = {en}
}