legionella, chlamydia pneumoniae and mycoplasma infection in patients admitted to christchurch hospital with pneumonia. | to determine the incidence, clinical features and outcome of community acquired pneumonia caused by mycoplasma pneumoniae, legionella species, coxiella burnetti, chlamydia pneumoniae and chlamydia psittaci requiring admission to hospital. | 1999 | 10448994 |