![](/img/cover-not-exists.png)
P-426
Zhang, Jinliang, Liu, Ling, Chen, Guoliang, Zhou, Yun, Chai, FaheVolume:
23
Language:
english
Journal:
Epidemiology
DOI:
10.1097/01.ede.0000417425.68504.1c
Date:
September, 2012
File:
PDF, 42 KB
english, 2012