RT Journal Article SR Electronic T1 Pulmonary Hamartoma JF Cleveland Clinic Journal of Medicine JO Cleve Clin J Med FD Cleveland Clinic SP 6 OP 11 VO 18 IS 1 A1 Effler, Donald B. A1 Scheid, J. E. YR 1951 UL http://www.ccjm.org/content/18/1/6.abstract AB