APA-viite (7. p.)

Cullen, S., Jewell, D., & Chapman, R. (2002). Susceptibility to primary sclerosing cholangitis is associated with a polymorphism of the MMP-9 (gelatinase B) gene.

Chicago-viite (17. p.)

Cullen, SN, D. Jewell, ja R. Chapman. Susceptibility to Primary Sclerosing Cholangitis Is Associated with a Polymorphism of the MMP-9 (gelatinase B) Gene. 2002.

MLA-viite (9. p.)

Cullen, SN, et al. Susceptibility to Primary Sclerosing Cholangitis Is Associated with a Polymorphism of the MMP-9 (gelatinase B) Gene. 2002.