6Park JB, Charbonnean F, Schiffrin EL. Correlation of endo- thelialfunction in large andsmall arteries in human essential hyperten- sion. J Hypertens 2001 ;19(3) :415 -420.
7Defronzo RA, Godman AM. The Multicenter Mefformin Stud- y Group. Efficacy of metformin in patients with non - insulin - de- pendent diabetes mellitus. N Engl J Med 1995 ;333:541.