RT Journal Article SR Electronic T1 Idiopathic Spontaneous Pneumothorax JF Cleveland Clinic Journal of Medicine JO Cleve Clin J Med FD Cleveland Clinic SP 178 OP 183 VO 7 IS 3 A1 Van Ordstrand, H. Scott YR 1940 UL http://www.ccjm.org/content/7/3/178.abstract AB