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Chang, Kiara Chu-Mei, John Tayu Lee, Eszter P. Vamos, Michael Soljak, Desmond Johnston, Kamlesh Khunti, Azeem Majeed, und Christopher Millett. "Impact of the National Health Service Health Check On Cardiovascular Disease Risk: A Difference-in-differences Matching Analysis." CMAJ 2016.

Chang, Kiara Chu-Mei, et al. "Impact of the National Health Service Health Check On Cardiovascular Disease Risk: A Difference-in-differences Matching Analysis." CMAJ 2016.