RT Journal Article SR Electronic T1 Photographic Standardization JF International Society of Hair Restoration Surgery FD Publication of the International Society of Hair Restoration Surgery SP 24 OP 24 DO 10.33589/3.6.0024 VO 3 IS 6 A1 Cattani, Robert YR 1993 UL http://www.ISHRS-HTForum.org/content/3/6/24.abstract AB