TY  - RPRT
TI  - Smiles when lying.
AU  - P Ekman
AU  - W V Friesen
AU  - M O'Sullivan
PY  - 1988
DO  - 10.1037//0022-3514.54.3.414
UR  - https://pubmed.ncbi.nlm.nih.gov/3361418/
ID  - 3361418
ER  -