- Correspondence to Dr C Mary Schooling, Li Ka Shing Faculty of Medicine, Life course and Lifestyle Epidemiology Group, School of Public Health, The University of Hong Kong; Unit 624-627, Level 6, Core F, Cyberport 3,100 Cyberport Road, Hong Kong, China;
- Received April 14, 2013
- Revised July 29, 2013
- Accepted August 16, 2013
- First published September 3, 2013.
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