An epidemiological study on quality of life among elderly in an urban area of Thirumazhisai, Tamilnadu oleh Gomathy Parsuraman, Pooja Vijayakumar, V M Anantha Eashwar, Ruma Dutta, Yogesh Mohan, Timsi Jain, Dinesh Kumar, Nisha Chandru, Krithiga Sivakumar