- Clarke M (2015).
History of evidence synthesis to assess treatment effects: personal reflections on something that is very much alive.
- O’Rourke K (2006).
A historical perspective on meta-analysis: dealing quantitatively with varying study results.
- Dickersin K, Chalmers I (2010).
Recognising, investigating and dealing with incomplete and biased reporting of clinical research: from Francis Bacon to the World Health Organisation.