The POPULAR study is sponsored by a grant of the European Society of Anaesthesiology Clinical Trial Network (ESA CTN).

The aim of the European Society of Anaesthesiology Clinical Trial Network is to provide an infrastructure for clinical research in the fields of Anaesthesia, Pain, Intensive Care and Emergency Medicine by transnational European collaborative studies.

The Clinical Trial Network of the European Society of Anaesthesiology can be contacted via: research@esahq.org