title: Help in the middle.
authors: J D
authors: JD
authors: Palazzolo
authors: R N
authors: RN
authors: Riner
mesh_terms: D002309:Cardiology / Q000191:economics*; D006282:Health Personnel / Q000191:economics*; D006801:Humans; D010818:Practice Patterns, Physicians' / Q000191:economics*; D000078329:Workforce