N. Rajendram, M. A. Sobani, M. Mansor, I. K. Kamarudin, and N. A. Rahim, “A Novel Bedside Diagnostic Technique for Acquired Tracheoesophageal Fistula”, Int. J. Hum. Health Sci., vol. 7, no. 70, p. S29, Jan. 2023.