Chlamydophila Pneumoniae Respiratory Tract Infection Aggravates Therapy Refractory Bronchitis or Pneumonia in Childhood - Schmidt, S M; Müller, C E; Gürtler, L; Bruns, R; Ballke, E H; Wiersbitzky, H; Ehlers, M; Rose, H J; Wiersbitzky, S K W (Klinische Pädiatrie, 2005)