Acknowledgements

We would like to thank Susan Norris from WHO for valuable feedback on the manuscript. Furthermore, we would like to thank Uwe Siebert, Beate Jahn, and Gaby Sroczynski from the Private University for Health Sciences, Medical Informatics and Technology, Hall, Austria for advice on how to classify modelling studies, Petra Wellemsen for administrative support throughout this project, and Genevieve Iseult Eldredge and Dawn Gartlehner for editing and proofreading the manuscript.