@article{automatedpaindetectionfromfacial,
  title = {Automated Pain Detection from Facial Expressions using FACS: A Review},
  author = {Chen Zhanli and Ansari Rashid and Wilkie Diana},
  year = {2018},
  eprint = {1811.07988},
  archivePrefix = {arXiv},
  url = {http://arxiv.org/abs/1811.07988v1},
}