The employment of a theatre-based workshop to support professional identity formation for medical students in a palliative medicine clerkship: an exploratory qualitative study - Eng Koon Ong; Min Chiam; April Thant Aung; Janelle Chan; Lalit Kumar Radha Krishna; Yingxuan Chen; Filomar Cortezano Tariao; Faith Ng; Jamie Zhou; Wen-Shan Sim (BMC Medical Education, 2026)