RT Journal Article SR Electronic T1 Rational approach to the diagnosis of Pneumocystis carinii pneumonia (PCP) JF European Respiratory Journal JO Eur Respir J FD European Respiratory Society SP 166 OP 168 DO 10.1183/09031936.93.06020166 VO 6 IS 2 A1 Lode, H A1 Schaberg, T YR 1993 UL http://erj.ersjournals.com/content/6/2/166.abstract AB