Request a PREreview

You can request a PREreview of Opioid-Free Versus Opioid-Based Anesthesia in Laparoscopic Surgery: A Systematic Review and Meta-Analysis of Randomized Controlled Trials. A PREreview is a review of a preprint and can vary from a few sentences to a lengthy report, similar to a journal-organized peer-review report.

Before you start

We will ask you to log in with your ORCID iD. If you don’t have an iD, you can create one.