APA aipamena

Klingberg, E., Lorentzon, M., Mellström, D., Geijer, M., Göthlin, J., Hilme, E., . . . Forsblad-d'Elia, H. (2012). Osteoporosis in ankylosing spondylitis - prevalence, risk factors and methods of assessment. BioMed Central.

Chicago Style aipamena

Klingberg, Eva, Mattias Lorentzon, Dan Mellström, Mats Geijer, Jan Göthlin, Elisabet Hilme, Martin Hedberg, Hans Carlsten, and Helena Forsblad-d'Elia. Osteoporosis in Ankylosing Spondylitis - Prevalence, Risk Factors and Methods of Assessment. BioMed Central, 2012.

MLA aipamena

Klingberg, Eva, et al. Osteoporosis in Ankylosing Spondylitis - Prevalence, Risk Factors and Methods of Assessment. BioMed Central, 2012.