Intended for healthcare professionals

Letters Pfizer’s covid vaccine trial

Drug companies need better oversight but have also provided excellent protection

BMJ 2021; 375 doi: (Published 02 December 2021) Cite this as: BMJ 2021;375:n2950

Article usage

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Usage statistics: December 2021 to May 2022

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Dec 202113806634
Jan 20225654710
Feb 202215482
Mar 2022324102
Apr 202219063
May 202211870