RT Journal Article SR Electronic T1 Parapneumonic effusion and empyema JF Archives of disease in childhood - Education & practice edition JO Arch Dis Child Educ Pract Ed FD BMJ Publishing Group Ltd and Royal College of Paediatrics and Child Health SP ep21 OP ep24 DO 10.1136/adc.2005.073478 VO 90 IS 1 A1 J Harry Baumer YR 2005 UL http://ep.bmj.com/content/90/1/ep21.abstract AB