RT Journal Article SR Electronic T1 How I do it: A simple, yet effective tool for preoperative marking of the donor area JF International Society of Hair Restoration Surgery FD Publication of the International Society of Hair Restoration Surgery SP 90 OP 90 DO 10.33589/19.3.0090 VO 19 IS 3 A1 McKenzie, W.G. Mark YR 2009 UL http://www.ISHRS-HTForum.org/content/19/3/90.abstract AB