TY - STAND AU - Y. Chen AU - J. Wu AU - I. Haschler AU - A. Majeed AU - T. Chen AU - T. Wetter BT - PLoS One DO - 10.1371/journal.pone.0021404 M1 - 6 PY - 2011 EP - e21404 T2 - PLoS One TI - Academic impact of a public electronic health database: bibliometric analysis of studies using the general practice research database VL - 6 SN - 1932-6203 ER -