Apr-14
AUTHORS : Dr Louise Marston, Research Department of Primary Care and Population Health, University College London, London, UK – Email: l.marston@ucl.ac.uk – Profile: https://iris.ucl.ac.uk/iris/browse/profile?upi=LMARS51
JOURNAL : BMJ Open
REFERENCE: 4(4):e004958
DOI : 10.1136/bmjopen-2014-004958