title: [Application and progress of multilevel models in epidemiological research].
authors: Chinese Center for Disease Control and Prevention, Beijing, China.
authors: Jian-nan
authors: JN
authors: Xing
authors: Sha-sha
authors: SS
authors: Qian
authors: Lu
authors: L
authors: Wang
mesh_terms: D004812:Epidemiologic Methods; D015233:Models, Statistical