Cite

    Boven, J. v., Gaughan, J., Soriano, J., Correia de Sousa, J., Baxter, N., Román-Rodríguez, M., Vilaró, J., Williams, S., Fitch, S., Kishore, K., & Chaudhury, H. (n.d.). p139 The burden of copd across the european union: development of the european copd atlas. Thorax, 71, A158. http://access.bl.uk/ark:/81055/vdc_100144715525.0x000034