(原始内容存档于2021-01-21). 请检查|date=中的日期值 (帮助) ACR Recommendations for the use of Chest Radiography and Computed Tomography (CT) for Suspected COVID-19 Infection. American
法國博物館研究和修復中心 (C2RMF) 進行的科學分析 Compare layers of the painting as revealed by x-radiography, infrared reflectographya and ultraviolet fluorescence "Stealing Mona