RT Journal Article SR Electronic T1 Frontal Sinus Fistula Secondary to a Cranial Foreign Body JF Ochsner Journal JO Ochsner J FD O. P. Jindal Global University SP 33 OP 34 VO 7 IS 1 A1 Isaac J. Rudloe A1 Richard J. Hesse A1 Jefferson Kaye YR 2007 UL http://www.ochsnerjournal.org/content/7/1/33.abstract AB