(1) Resident of Internal Medicine, Department of Internal Medicine Dr. Soetomo Hospital, Faculty of Medicine, Universitas Airlangga, Surabaya,, Indonesia,
(2) Geriatrist, Department of Internal Medicine Dr. Soetomo Hospital, Faculty of Medicine, Universitas Airlangga, Surabaya, Indonesia,
(3) Geriatrist, Department of Internal Medicine Dr. Soetomo Hospital, Faculty of Medicine, Universitas Airlangga, Surabaya, Indonesia