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APA Citation
Chen, B., & Ferreira, J. (2019). spontaneous Pneumomediastinum, Pneumoperitoneum, and Pneumoretroperitoneum After Endoscopic Cryoablation Without Frank Perforation. ACG Case Reports Journal, 6(8), e00204–. http://access.bl.uk/ark:/81055/vdc_100168327676.0x000020