| 1 | Cui GuoqiangThe Center for Disease Control and Prevention of Huairou; Huairou 101400; China; | |
| 2 | Huairou district from a commercial construction site Master Li said the workers. | |
| 3 | Bian Xiufen is now living in Huairou district. She has a keen interest in singing, dancing and Pingju opera in particular. | |
| 4 | The research subjects are 40 students in Senior Grade Three in Huairou Hongluosi High School. | |
| 5 | Great tourist area Huanghuacheng water at the town of Huairou District, Beijing Jiuduhe It is known to show features. |
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