1. Ethics and values: "What is science?" http://www.aps.org/policy/statements/99_6.cfm . Accessed 9 June 2012
2. An sweave demo; Literate programming in R; reproducible research. http://users.stat.umn.edu/~geyer/Sweave/ . Accessed 9 June 2012
3. CONSORT: Consolidated Standards of Reporting Trials. http://www.consort-statement.org/ . Accessed 9 June 2012
4. Preferred reporting items for systematic reviews and meta-analyses: the prisma statement. http://www.prisma-statement.org/ . Accessed 9 June 2012
5. Standards for the reporting of diagnostic accuracy studies. http://www.stard-statement.org/ . Accessed 9 June 2012