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APA Citation
Baumberger, H., & Khan, M. (n.d.). sAT0417 Gradual progressive change to equal prevalence of ankylosing spondylitis among males and females in switzerland: data from the swiss ankylosing spondylitis society (SVMB). Annals of the rheumatic diseases, 76, 929. http://access.bl.uk/ark:/81055/vdc_100135137304.0x000062