title: Frequent users of emergency departments: the myths, the data, and the policy implications.
authors.affiliation: Department of Emergency Medicine, Mount Sinai School of Medicine, New York, NY 10029, USA. eduardo.lacalle@mssm.edu
authors.forename: Eduardo
authors.initials: E
authors.lastname: LaCalle
authors.forename: Elaine
authors.initials: E
authors.lastname: Rabin