Gambaran tren kematian jemaah haji reguler Indonesia kelompok umur lansia tahun 2015, 2016, dan 2017: analisis data Siskohatkes Pusat Kesehatan Haji Kementerian Kesehatan RI = Mortality trends overview of Indonesian regular hajj pilgrims elderly age group in 2015, 2016, and 2017: analysis of Siskohatkes Data by the Health Center of Hajj Indonesian Ministry of Health