RT Journal Article SR Electronic T1 Research JF International Society of Hair Restoration Surgery FD Publication of the International Society of Hair Restoration Surgery SP 7 OP 7 DO 10.33589/3.5.0007 VO 3 IS 5 A1 Vogel, James E. YR 1993 UL http://www.ISHRS-HTForum.org/content/3/5/7.abstract AB