Cohort Profile: A study of influenza immunity in the urban and rural Guangzhou region of China: the Fluscape Study. (14th February 2016) - Jiang, Chao Qiang; Lessler, Justin; Kim, Lina; Kwok, Kin On; Read, Jonathan M; Wang, Shuying; Tan, Lijiu; Hast, Marisa; Zhu, Huachen; Guan, Yi; Riley, Steven; Cummings, Derek AT