Ekberg, O., Borgström, A., Fork, F., & Lövdahl, E. (1994). Endoscopic Balloon Dilatation of Benign Esophageal Stricture—A Nonhazardous Procedure? Hindawi Publishing Corporation.
Citação norma ChicagoEkberg, Olle, Anders Borgström, Frans-Thomas Fork, and Eje Lövdahl. Endoscopic Balloon Dilatation of Benign Esophageal Stricture—A Nonhazardous Procedure? Hindawi Publishing Corporation, 1994.
Citação norma MLAEkberg, Olle, Anders Borgström, Frans-Thomas Fork, and Eje Lövdahl. Endoscopic Balloon Dilatation of Benign Esophageal Stricture—A Nonhazardous Procedure? Hindawi Publishing Corporation, 1994.
Nota: a formatação da citação pode não corresponder 100% ao definido pela respectiva norma.