RT Journal Article SR Electronic T1 Which patients with a parapneumonic effusion need a chest tube? JF Cleveland Clinic Journal of Medicine JO Cleve Clin J Med FD Cleveland Clinic SP 609 OP 611 DO 10.3949/ccjm.85a.17036 VO 85 IS 8 A1 Helgeson, Scott A. A1 Hiroto, Brett T. A1 Billings, Scott J. A1 Scott, Courtney L. A1 Lewis, Michele D. YR 2018 UL http://www.ccjm.org/content/85/8/609.abstract AB