RT Journal Article SR Electronic T1 Male Pattern Baldness is Progressive JF International Society of Hair Restoration Surgery FD Publication of the International Society of Hair Restoration Surgery SP 1 OP 1 DO 10.33589/3.5.0001 VO 3 IS 5 A1 Norwood, O’Tar T. YR 1993 UL http://www.ISHRS-HTForum.org/content/3/5/1.1.abstract AB