Koncoro, H., I. K. Mariadi, G. Somayana, I. Suryadarma, N. Purwadi, and I. Wibawa. “Age and Alarm Symptoms Predict Upper Gastrointestinal Malignancy Among Patients With Dyspepsia”. The Indonesian Journal of Gastroenterology, Hepatology, and Digestive Endoscopy, vol. 14, no. 2, Sept. 2013, pp. 73-80, doi:10.24871/142201373-80.