Koncoro, H., Mariadi, I. K., Somayana, G., Suryadarma, I., Purwadi, N., & Wibawa, I. (2013). Age and Alarm Symptoms Predict Upper Gastrointestinal Malignancy among Patients with Dyspepsia. The Indonesian Journal of Gastroenterology, Hepatology, and Digestive Endoscopy, 14(2), 73–80. https://doi.org/10.24871/142201373-80