Challenges in the Cardiothoracic and Vascular Anesthesia Fellowship Program Since the Coronavirus Disease 2019 (COVID-19) Pandemic: An Electronic Survey on Potential Solutions

自2019冠状病毒病（COVID-19）大流行以来，心胸血管麻醉专科医师培训项目面临的挑战：一项关于潜在解决方案的电子调查