RT Journal Article SR Electronic T1 Comments on Birmingham JF International Society of Hair Restoration Surgery FD Publication of the International Society of Hair Restoration Surgery SP 1 OP 2 DO 10.33589/4.2.0001 VO 4 IS 2 A1 Norwood, O’Tar T. YR 1994 UL http://www.ISHRS-HTForum.org/content/4/2/1.1.abstract AB