Kausto, J., Verbeek, J. H., Ruotsalainen, J. H., Halonen, J. I., Virta, L. J., & Kankaanpää, E. (2018). Self‐certification versus physician certification of sick leave for reducing sickness absence and associated costs. Cochrane Database Syst Rev.

Kausto, Johanna, Jos H. Verbeek, Jani H. Ruotsalainen, Jaana I. Halonen, Lauri J. Virta, ja Eila Kankaanpää. "Self‐certification Versus Physician Certification of Sick Leave for Reducing Sickness Absence and Associated Costs." Cochrane Database Syst Rev 2018.

Kausto, Johanna, et al. "Self‐certification Versus Physician Certification of Sick Leave for Reducing Sickness Absence and Associated Costs." Cochrane Database Syst Rev 2018.