Muhammad Eko Cahyanto
* Corresponding Author Academic Hospital, Universitas Gadjah Mada,
Neneng Ratnasari Division of Gastroenterology and Hepathology, Faculty of Medicine, Universitas Gadjah Mada / Dr. Sardjito General Hospital, Yogyakarta
Agus Siswanto Division of Psychosomatic, Department of Internal Medicine, Faculty of Medicine, Universitas Gadjah Mada/Dr. Sardjito General Hospital, Yogyakarta