A comparative study of demineralized freeze-dried bone allograft alone and with 1% metformin in the treatment of intrabony defects in patients with chronic periodontitis: A randomi... oleh Dipika K Mitra, Rutuja Jeevandas Donde, Ankit B Desai, Kashmira Prakash Ghangrekar, Priyanka Nandakumar Potdar, Gaurav Prabhakar Shetty