NationalPrincipal Investigator of AstraZeneca Clinical Trial Backs Increasing Gap In Two Covishield DosesTestHostEntryJune 18, 2021June 3, 2022 by TestHostEntryJune 18, 2021June 3, 2022 Principal Investigator of AstraZeneca Clinical Trial, Dr Andrew Pollard said that Britain had reduced the gap of two doses at a time when a large...
