title: PSOs may pose threat to APNs.
authors.affiliation: School of Nursing, University of Maryland at Baltimore, USA.
authors.forename: C P
authors.initials: CP
authors.lastname: Jennings
mesh_terms: D006801:Humans; D009720:Nurse Clinicians / Q000458:organization & administration*; D009722:Nurse Practitioners / Q000458:organization & administration*; D012051:Reimbursement Mechanisms / Q000331:legislation & jurisprudence*; D014481:United States