Four items: one TLS signed “Adrian Kantrowitz,” one page, 8.5 x 11, Sinai Hospital of Detroit letterhead, May 28, 1985, responding to an autograph request; one TLS signed “Michael E. DeBakey,” one page, 8.5 x 11, Baylor College of Medicine letterhead, September 12, 1975, responding to an autograph request; and two black ink signatures, “Michael E. DeBakey,” on individual off-white 5 x 3 cards. In overall fine condition. RR Auction COA.