الوصول الحر: https://escholarship.org/uc/item/1m5021wbTest
الإتاحة: https://doi.org/10.1056/NEJMoa2205225Testhttps://digitalcommons.wustl.edu/oa_4/1994Testhttps://digitalcommons.wustl.edu/context/oa_4/article/3000/viewcontent/nejmoa2205225.pdfTest