United on Sunday: The effects of secular rituals on social bonding and affect Charles, Sarah J. ; van Mulukom, Valerie ; Brown, Jennifer E. ; Watts, Fraser ; Dunbar, Robin I. M. ; Farias, Miguel Abstract Publication: PLoS ONE Pub Date: January 2021 DOI: 10.1371/journal.pone.0242546 Bibcode: 2021PLoSO..1642546C