Towards an explicit national health benefit package for Malaysia: a participatory multi-method study into stakeholder perspectives and evidence-informed policy design - Khairil Idham Ismail; Erni Zurina Romli; Hanin Farhana Kamaruzaman; Ku Nurhasni Ku Abd Rahim; Tengku Noor Farhana Tengku Khalid; Roza Sarimin; Syaharatul Patimah Kamarudin; Ahmad Faris Abdul Fatah; Nur Dalilah Mohd Rani; Izzuna Mudla Mohamed Ghazali (BMC Health Services Research, 2026)