1. Kenna J, Smyth M, McKenna L, Dockery C, McDermott SD. The recovery and persistence of salivary DNA on human skin. J Forensic Sci. 2011;56(1):170–5.
2. Gabriel S. Sexual assault handbook. London: Taylor & Francis Group; 2010. p. 1–15.
3. Sweet D, Lorente M, Lorente JA, Valenzuela A, Villanueva E. an improved method to recover saliva from human skin: the double swab technique. J Forensic Sci. 1995;42(2):320–2.
4. Brown K. Forensic examination of sexual assault victims. Practical aspects of rape investigations. Boca Raton: CRC Press; 2001. p. 1–34.
5. Garrett A, Patlak D, Brodeur A, Grgicak C. Improving DNA evidence collection via quantitative analysis: a systems approach. Boston: Boston University School of Medicine; 2012.