RT Journal Article SR Electronic T1 Teflon pharyngoplasty in incompetent velopharyngeal closure JF Cleveland Clinic Journal of Medicine JO Cleve Clin J Med FD Cleveland Clinic SP 93 OP 95 VO 40 IS 2 A1 Benveniste, Ronald J. A1 Harris, Harold E. A1 Batza, Eugene M. YR 1973 UL http://www.ccjm.org/content/40/2/93.abstract AB