title: Medical education in the United States: are we building a multitiered system?
authors: Arthur M
authors: AM
authors: Feldman
mesh_terms: D001675:Bioethics / Q000193:education*; D056808:Biostatistics; D003479:Curriculum / Q000592:standards; D004501:Education, Medical / Q000379:methods* / Q000592:standards*; D006801:Humans; D012107:Research Design; D014481:United States