PeerJ Author 135 Points Contributions by role Author 135 Contributions by subject area Neuroscience Anesthesiology and Pain Management Gynecology and Obstetrics Women's Health Liang Sun PeerJ Author Summary Anesthesiology & Pain Management Science & Medical Education Statistics Surgery & Surgical Specialties PeerJ Contributions Articles 1 December 22, 2021 Electroencephalogram-derived pain index for evaluating pain during labor Liang Sun, Hong Zhang, Qiaoyu Han, Yi Feng https://doi.org/10.7717/peerj.12714 PubMed 35036175