Authors: Robert L Phillips; Doreen C Harper; Mary Wakefield; Larry A Green; George E Fryer Journal: Health Aff (Millwood) Date: 2002 Sep-Oct Impact factor: 6.301
Authors: M O Mundinger; R L Kane; E R Lenz; A M Totten; W Y Tsai; P D Cleary; W T Friedewald; A L Siu; M L Shelanski Journal: JAMA Date: 2000-01-05 Impact factor: 56.272