RT Journal Article SR Electronic T1 Diagnostic value of BAL lymphocytosis in patients with indeterminate for usual interstitial pneumonia imaging pattern JF European Respiratory Journal JO Eur Respir J FD European Respiratory Society SP 1901144 DO 10.1183/13993003.01144-2019 VO 54 IS 5 A1 Vasilios Tzilas A1 Argyrios Tzouvelekis A1 Evangelos Bouros A1 Theodoros Karampitsakos A1 Maria Ntasiou A1 Mattheos Katsaras A1 Ulrich Costabel A1 Athol Wells A1 Demosthenes Bouros YR 2019 UL http://erj.ersjournals.com/content/54/5/1901144.abstract AB