Dear colleague,

Hello, I hope this message finds you well. We invite you to participate in a study about discrimination of researchers conducting systematic reviews, evidence syntheses and meta-research. Specifically, we are interested in whether you have experienced any forms of unequal treatment due to the type of studies that you conduct.

We are interested in balanced views, so we would appreciate feedback also from researchers conducting such studies that have NOT encountered any discrimination in their work with systematic reviews, evidence syntheses and meta-research.

Eligible participants are researchers conducting systematic reviews or any kind of evidence syntheses and meta-research for at least 5 years.

To enter the survey, please use the following link: https://www.surveymonkey.com/r/G5LLXVQ

The study is conducted via a brief online survey, which will take approximately 12 minutes to complete. The survey can be filled out on your mobile device or a desktop computer.

In the online survey, we will not collect your name or your email address. The results of this study will be used for research purposes only.

This survey was approved by the Ethics Committee of the Catholic University of Croatia. Please do not hesitate to contact the principal investigator, Prof. Livia Puljak (livia.puljak@unicath.hr), if you have any questions.

A link on the first page of the survey opens more detailed information about the study for the potential participants.

We would also appreciate it if you could forward this survey invitation to other eligible individuals.

We are looking forward to your responses, and thank you in advance for your contribution.

Yours sincerely,

Prof. Livia Puljak, MD, PhD