1. Accreditation council for graduate medical education (ACGME). Internal Medicine Milestones Published online2020.https://www.acgme.org/globalassets/pdfs/milestones/internalmedicinemilestones.pdf
2. The Royal College of Physicians and surgeons of Canada. CanMEDS framework. Published online2015.https://www.royalcollege.ca/rcsite/canmeds/framework/canmeds-role-communicator-e
3. General medical council (UK). General medical council: Good medical practice. Published online2013.https://www.gmc-uk.org/-/media/documents/good-medical-practice---english-20200128_pdf-51527435.pdf
4. End‐of‐life training in US internal medicine residency programs: A National Study;Cegelka D;J Medic Educ Training,2017