The questionnaires can be downloaded and used after registration without any fee for academic purposes. If the PROBE questionnaire is used in a clinical trial the developer of the PROBE should be consulted prior to the start of the study. The User is asked to identify him/herself as well as the institution he/she is working in and to provide information about the intended use of the questionnaires in research or clinical practice. When using the PROBE questionnaire in a clincial or epidemiological trial a synopsis must be provided prior to the start of the study to the PROBE.

It is mandatory that items of the questionnaire are not changed in wording and that no unauthorised translations are made.

To register please fill in the appropriate registration form then you can go to the respective questionnaires on this site.