By Wang Lai Shuan   Cheng Guo Qiang   Chen Chao   Cao Yun   in Journal of Tropical Pediatrics

ISSN:1465-3664|59|1|70-71

Oxford University Press‎(2013)‎

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By Han Zhi-jun   Cheng Guo-qiang   Ma Hong-wei   Zhang Shan-yuan   in Applied Mathematics and Mechanics

ISSN:0253-4827|27|3|377-382

Springer Publishing Company ‎(2006)‎

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