RT Journal Article SR Electronic T1 Diagnosis of ventilator-associated pneumonia: nonroutine tools for routine practice JF European Respiratory Journal JO Eur Respir J FD European Respiratory Society SP 1339 OP 1341 VO 9 IS 7 A1 Ewig, S YR 1996 UL http://erj.ersjournals.com/content/9/7/1339.abstract AB