RT Journal Article SR Electronic T1 The search for the “healthy” blood eosinophil count JF European Respiratory Journal JO Eur Respir J FD European Respiratory Society SP 2000473 DO 10.1183/13993003.00473-2020 VO 55 IS 5 A1 Signe Vedel-Krogh YR 2020 UL http://erj.ersjournals.com/content/55/5/2000473.abstract AB