Article info
Original Article
Circadian and seasonal rhythms of acute upper gastrointestinal bleeding in Beijing
- Correspondence to Houli Wang, Emergency Department, Peking Union Medical College Hospital, Chinese Academy of Medical Sciences, Shuai-Fu-Yuan No 1, Dong-Cheng District, Beijing 100730, China; houli_wang{at}yahoo.com
Citation
Circadian and seasonal rhythms of acute upper gastrointestinal bleeding in Beijing
Publication history
- Accepted June 11, 2009
- First published June 1, 2010.
Online issue publication
June 28, 2010
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© 2010, Published by the BMJ Publishing Group Limited. For permission to use (where not already granted under a licence) please go to http://group.bmj.com/group/rights-licensing/permissions.