RT Journal Article SR Electronic T1 Guidelines for perioperative antithrombotic therapy in hair restoration surgery: management of patients with coronary heart disease, mechanical heart valve, and atrial fibrillation JF International Society of Hair Restoration Surgery FD Publication of the International Society of Hair Restoration Surgery SP 59 OP 64 DO 10.33589/22.2.0059 VO 22 IS 2 A1 Kuniyoshi Yagyu YR 2012 UL http://www.ISHRS-HTForum.org/content/22/2/59.abstract