id	keyword
eurjchem-2084	2020
eurjchem-2084	sars
eurjchem-2084	covid-19
eurjchem-2084	cov-2
eurjchem-2084	vaccine
eurjchem-2084	virus
eurjchem-2084	december
eurjchem-2084	study
eurjchem-2084	wang
eurjchem-2084	clinical
eurjchem-2084	infection
eurjchem-2084	trial
eurjchem-2084	phase
eurjchem-2084	use
eurjchem-2084	patients
eurjchem-2084	journal