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APA Citation
Brill, S., El-Emir, E., Singh, R., Patel, A., Mackay, A., Donaldson, G., Nazareth, I., & Wedzicha, J. (n.d.). p183 Recruitment to COPD Clinical Trials from Primary Care Patients. Thorax, 67, A143–A144. http://access.bl.uk/ark:/81055/vdc_100144714468.0x00003b