Occupational therapists' knowledge, attitude, and perceived barriers regarding palliative care: a cross-sectional study in Saudi Arabia. - Alnamnakani A; Sarsak HI; Ali OI; Aljabri NQ; Ziyadah S; Almutairi S; Almarshoud T; Maghrabi L; Almalky R (Frontiers in public health, 2026)