APA citiranje

van der Heijde, D., Braun, J., McGonagle, D., & Siegel, J. (2002). Treatment trials in ankylosing spondylitis: Current and future considerations.

Citação norma Chicago

van der Heijde, D., J. Braun, D. McGonagle, and J. Siegel. Treatment Trials in Ankylosing Spondylitis: Current and Future Considerations. 2002.

MLA citiranje

van der Heijde, D., J. Braun, D. McGonagle, and J. Siegel. Treatment Trials in Ankylosing Spondylitis: Current and Future Considerations. 2002.