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APA Citation
Gonçalves, I. S., Bordalo e Sá, A. L., Fatela, N., & Canas da Silva, P. (2019). a case report: black oesophagus as a possible complication of transcatheter aortic valve implantation. European heart journal, 3(2), . http://access.bl.uk/ark:/81055/vdc_100094073249.0x000006