Although information on efficacy and adverse drug reactions is lacking ,
ribavirin has been used empirically for the treatment of severe acute respiratory syndrome ( SARS ) .
Although information on efficacy and adverse drug reactions is lacking , ribavirin has been used empirically for the treatment of severe acute respiratory syndrome ( SARS ) .
Although information on efficacy and adverse drug reactions is lacking , ribavirin has been used empirically for the treatment of severe acute respiratory syndrome ( SARS ) .