RT Journal Article SR Electronic T1 Editorial JF International Society of Hair Restoration Surgery FD Publication of the International Society of Hair Restoration Surgery SP 21 OP 21 DO 10.33589/3.5.0021 VO 3 IS 5 A1 O’Tar T. Norwood YR 1993 UL http://www.ISHRS-HTForum.org/content/3/5/21.abstract AB