TY - STAND AU - A. Jain AU - A. van Hoek AU - J. Walker AU - R. Mathur AU - L. Smeeth AU - S. Thomas BT - PLoS One DO - 10.1371/journal.pone.0189038 M1 - 11 PY - 2017 EP - e0189038 T2 - PLoS One TI - Identifying social factors amongst older individuals in linked electronic health records: An assessment in a population based study VL - 12 SN - 1932-6203 ER -