TY - STAND
AU - J. Hardy
AU - T. Holford
AU - G. Hall
AU - M. Bracken
BT - Pharmacoepidemiol Drug Saf
DO - 10.1002/pds.935
M1 - 11
PY - 2004
SP - 749
EP - 59
T2 - Pharmacoepidemiol Drug Saf
TI - Strategies for identifying pregnancies in the automated medical records of the General Practice Research Database
VL - 13
SN - 1053-8569 (Print) 1053-8569
ER -