The Diagnostic Moment: A Study in US Primary Care John Heritage, Sociology, UCLA Amanda McArthur, Sociology, UCLA Corresponding Author: John Heritage, 264 Haines Hall, UCLA, Los Angeles, CA 90095-1551. Tel. +1 310-206-5216 Fax +1 310-206-9838 Email: heritage@ucla.edu Heritage ORCID ID: https://orcid.org/0000-0002-8603-6447 McArthur ORCID ID: https://orcid.org/0000-0002-0912-8006