title: [Fetal electrocardiogram extraction based on nonlinear time series analysis].
authors.affiliation: College of Electronic Information & Control Engineering, Beijing University of Technology, Beijing 100124, China. chen840318@sina.com
authors.forename: Chen
authors.initials: C
authors.lastname: Wang
authors.forename: Mingrong
authors.initials: M
authors.lastname: Ren
authors.forename: Pu
authors.initials: P
authors.lastname: Wang
authors.forename: Shizhong
authors.initials: S
authors.lastname: Fan