RT Journal Article SR Electronic T1 Pilonidal sinus in males: To preserve or to obliterate the natal cleft JF Saudi Medical Journal JO Saudi Med J FD Prince Sultan Military Medical City SP 875 OP 876 VO 23 IS 7 A1 Abdulrahman S. Al-Mulhim A1 Mohammed A. Sultan A1 Hamdoun H. Ahmed YR 2002 UL http://smj.org.sa/content/23/7/875.abstract AB