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2. Federal Bureau of Investigation Laboratory Serology Unit Protocol Manual;Spaulding,1989
3. The Examination and Typing of Bloodstains in the Crime Laboratory;Culliford,1971
4. A study of the sensitivity and specificity of four presumptive tests for blood;Cox;J. Forensic Sci.,1991
5. ABAcard® HemaTrace® For The Forensic Identification of Human Blood (product insert), catalog #708424, USA, 1999.