TY - JOUR T1 - Associations between extending access to primary care and emergency department visits : a difference-in-differences analysis JO - PLoS Medicine PY - 2016/09/06 AU - Whittaker W AU - Anselmi L AU - Kristensen SR AU - Lau Y-S AU - Bailey S AU - Bower P AU - Checkland K AU - Elvey R AU - Rothwell K AU - Stokes J AU - Hodgson D ED - DO - DOI: 10.1371/journal.pmed.1002113 PB - Public Library of Science (PLoS) VL - 13 IS - 9 Y2 - 2024/10/18 ER -