APA-referens (7:e uppl.)

Clift, A., Coupland, C., & Hippisley-Cox, J. (2021). Prostate-specific antigen testing and opportunistic prostate cancer screening: A cohort study in England, 1998–2017. Royal College of General Practitioners.

Chicago-referens (17:e uppl.)

Clift, AK, CAC Coupland, och J. Hippisley-Cox. Prostate-specific Antigen Testing and Opportunistic Prostate Cancer Screening: A Cohort Study in England, 1998–2017. Royal College of General Practitioners, 2021.

MLA-referens (9:e uppl.)

Clift, AK, et al. Prostate-specific Antigen Testing and Opportunistic Prostate Cancer Screening: A Cohort Study in England, 1998–2017. Royal College of General Practitioners, 2021.

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