1. Available: https://www.acgme.org/Portals/0/PDFs/Milestones/EmergencyMedicineMilestones.pdf?ver=2015-11-06-120531-877 [Accessed Jun 2019].
2. https://www.acgme.org/Portals/0/PDFs/Milestones/SurgeryMilestones2.0.pdf?ver=2019-05-29-124604-347 [Accessed Jul 2019].
3. https://www.acgme.org/Portals/0/PDFs/Milestones/AnesthesiologyMilestones.pdf?ver=2015-11-06-120534-217 [Accessed Jul 2019].
4. https://www.nytimes.com/2010/07/06/health/06waste.html [Accessed Jul 2019].
5. AORN position statement on environmental responsibility;Aorn J,2014