4Saleem S, Mani V , Chadwick MA, et al. A prospective study of causes of haemolysis venepunture: tourniquet time should be kept to a minimum[J]. Ann Clin Biochem, 2009 46(3) :244 -246.
5Lynn AM, Fischer T, Brandford HG. Systemic responses to tourniquet release in children [ J ]. Anesth Analg, 1986, 65 ( 8 ) : 865 - 872.