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APA Citation
Ergül, B., Sarıkaya, M., Doğan, Z., Filik, L., & Bıyıkoğlu, İ. (n.d.). is topical pharyngeal anesthesia necessary in esophagogastroduodenoscopy in all unsedated patients?. Digestive endoscopy, 25(1), 90–91. http://access.bl.uk/ark:/81055/vdc_100109437077.0x000049