RT Journal Article SR Electronic T1 Letter to the Editors JF International Society of Hair Restoration Surgery FD Publication of the International Society of Hair Restoration Surgery SP 154 OP 154 DO 10.33589/31.4.154 VO 31 IS 4 A1 Williams, Gregory YR 2021 UL http://www.ISHRS-HTForum.org/content/31/4/154.abstract AB