Frailty state among Indonesian elderly: prevalence, associated factors, and frailty state transition oleh Siti Setiati, Purwita Wijaya Laksmi, I.G.P. Suka Aryana, Sri Sunarti, Novira Widajanti, Lazuardhi Dwipa, Euphemia Seto, Rahmi Istanti, Laurentius Johan Ardian, Sabrina Chusnul Chotimah