1. Guidelines for Patient-Reported Outcomes in Clinical Trial Protocols
2. Kravitz RL, Duan MSPHN. DEcIDE Methods Centre N-of-1 Guidance Panel. Design and implementation of N-of-1 trials: a user’s guide. Agency for Healthcare Research and Quality, 2014. https://effectivehealthcare.ahrq.gov/products/n-1-trials/research-2014-5/.
3. External validity of randomised controlled trials: “To whom do the results of this trial apply?”
4. What is Right and What is Wrong About Evidence‐Based Medicine?