Y Rozenfeld, J Beam, H Maier, W Haggerson… - International Journal for …, 2020 - cir.nii.ac.jp
抄録< jats: title> Abstract</jats: title>< jats: sec>< jats: title> Background</jats: title>< jats: p>
By mid-May 2020, there were over 1.5 million cases of (SARS-CoV-2) or COVID-19 across …