Authors: W I Hay; C van Ineveld; G Browne; J Roberts; B Bell; M Mills; L Chambers; A Gafni; S Macpherson Journal: Can Fam Physician Date: 1998-12 Impact factor: 3.275
Authors: A E Stuck; H U Aronow; A Steiner; C A Alessi; C J Büla; M N Gold; K E Yuhas; R Nisenbaum; L Z Rubenstein; J C Beck Journal: N Engl J Med Date: 1995-11-02 Impact factor: 91.245