TY - JOUR T1 - Metformin is a unique drug JF - Canadian Family Physician JO - Can Fam Physician SP - 589 LP - 589 VL - 55 IS - 6 AU - Gauranga C. Dhar Y1 - 2009/06/01 UR - http://www.cfp.ca/content/55/6/589.1.abstract N2 - ER -