@misc{indiciaea05b67c24d2c,
  title = {Heterogeneity of Long-History Migration Predicts Smiling, Laughter and Positive Emotion Across the Globe and Within the United States},
  author = {Niedenthal, P. M. and Rychlowska, M. and Wood, A. and Zhao, F.},
  year = {2018},
  doi = {10.1101/317289},
  url = {https://www.biorxiv.org/content/10.1101/317289v1},
  note = {Source identifier: 10.1101/317289}
}