RT Journal Article SR Electronic T1 “Focal dense-packing” in hair transplantation JF International Society of Hair Restoration Surgery FD Publication of the International Society of Hair Restoration Surgery SP 1 OP 7 DO 10.33589/18.1.0001 VO 18 IS 1 A1 Michael L. Beehner YR 2008 UL http://www.ISHRS-HTForum.org/content/18/1/1.abstract