title: Readers' perspectives. Are National health information network and regional health information networks destined to fail unless a national patient identifer is mandated?
authors: Dawn
authors: D
authors: Shedlock
authors: John
authors: J
authors: Espinosa
authors: Kenneth
authors: K
authors: Scharf
authors: Lonnie
authors: L
authors: Blevins
authors: Luis
authors: L
authors: Taveras