Cita APA (7a ed.)

Elfvin, A., Leijonhufvud, Å., Wendel, S. B., Abrahamsson, T., Wessberg, A., Fadl, H., . . . Pontén, Å. (2021). COVID-19 in Pregnancy and Early Childhood (COPE): Study protocol for a prospective, multicentre biobank, survey and database cohort study. BMJ Publishing Group.

Cita Chicago Style (17a ed.)

Elfvin, Anders, et al. COVID-19 in Pregnancy and Early Childhood (COPE): Study Protocol for a Prospective, Multicentre Biobank, Survey and Database Cohort Study. BMJ Publishing Group, 2021.

Cita MLA (8a ed.)

Elfvin, Anders, et al. COVID-19 in Pregnancy and Early Childhood (COPE): Study Protocol for a Prospective, Multicentre Biobank, Survey and Database Cohort Study. BMJ Publishing Group, 2021.