TY - STAND
AU - H. Booth
AU - A. Prevost
AU - M. Gulliford
BT - Pharmacoepidemiol Drug Saf
DO - 10.1002/pds.3537
M1 - 12
PY - 2013
SP - 1357
EP - 61
T2 - Pharmacoepidemiol Drug Saf
TI - Validity of smoking prevalence estimates from primary care electronic health records compared with national population survey data for England, 2007 to 2011
VL - 22
SN - 1053-8569
ER -