Authors: S A Bremner; I M Carey; S DeWilde; N Richards; W C Maier; S R Hilton; D P Strachan; D G Cook Journal: Arch Dis Child Date: 2005-06 Impact factor: 3.791
Authors: Peter I Frank; Paul D Wicks; Michelle L Hazell; Mary F Linehan; Sybil Hirsch; Philip C Hannaford; Timothy L Frank Journal: Br J Gen Pract Date: 2005-08 Impact factor: 5.386