title: Question of 'ostensible agency' adds twist to malpractice.
mesh_terms: D006279:Health Maintenance Organizations / Q000331:legislation & jurisprudence*; D007193:Independent Practice Associations / Q000331:legislation & jurisprudence*; D007882:Legislation, Hospital; D008318:Malpractice / Q000331:legislation & jurisprudence*; D010414:Pennsylvania; D011331:Private Practice / Q000331:legislation & jurisprudence*; D013781:Texas