Clinical and Laboratory Standards Institute ed.(2007): Procedures for the Collection of Diagnostic Blood Specimens by Venipuncture; Approved standard, 6th Ed., CLSI document H3-A6, 27(26), 10.
Moore, M. R., Garfin, S. R., & Hargens, A. R.(1987): Wide tourniquets eliminate blood flow at low inflation pressures. J. Hand Surg., 12A (6), 1006-1011.