Procalcitonin and C-Reactive Protein in Hospitalized Adult Patients With Community-Acquired Pneumonia or Exacerbation of Asthma or COPD - Mona Bafadhel; Tristan Clark; Carlene Reid; Marie-Jo Medina; Sally Batham; Michael R. Barer; Karl G. Nicholson; Christopher E. Brightling (2010)