vaccine. Reuters. 2020-12-30 [2020-12-30]. (原始内容存档于2021-02-04). Bahrain approves Oxford/AstraZeneca coronavirus vaccine produced in India. Saudigazette
Theatrical Releases In Light Of Coronavirus Crisis; Others Including Oscar Expected To Follow. Deadline. 2020-03-26 [2020-04-20]. (原始内容存档于2020-04-04) (英语).
kill dozens in attacks on two Niger villages. BBC. 2021-01-03 [2021-01-03]. (原始内容存档于2021-01-21). 117th Congress sworn in Sunday amid pandemic. CNN. 2021-01-03