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APA Citation
Avouac, J., Wipff, J., Kahan, A., & Allanore, Y. (2008). effects of oral treatments on exercise capacity in systemic sclerosis related pulmonary arterial hypertension: a meta-analysis of randomised controlled trials. Annals of the rheumatic diseases, 67(6), 808–814. http://access.bl.uk/ark:/81055/vdc_100137783517.0x000063