RT Journal Article SR Electronic T1 Safety measures in high-risk patients with cardiovascular disease and elderly patients undergoing hair restoration surgery JF International Society of Hair Restoration Surgery FD Publication of the International Society of Hair Restoration Surgery SP 116 OP 120 DO 10.33589/21.4.0116 VO 21 IS 4 A1 Yagyu, Kuniyoshi YR 2011 UL http://www.ISHRS-HTForum.org/content/21/4/116.abstract AB