RT Journal Article SR Electronic T1 Spigelian hernia JF Cleveland Clinic Journal of Medicine JO Cleve Clin J Med FD Cleveland Clinic SP 13 OP 18 VO 38 IS 1 A1 Hertzer, Norman R. A1 Montie, Joseph E. YR 1971 UL http://www.ccjm.org/content/38/1/13.abstract AB