Covid-19: Fever, chills, and aches more common when AstraZeneca and Pfizer vaccines are mixed, early data show

Gareth Iacobucci
2021 The BMJ (British Medical Journal)  
doi:10.1136/bmj.n1216 pmid:33980548 fatcat:ady3nfh6xjcuzgye3lsqgkzuhm