TY - STAND
AU - I. Matok
AU - L. Azoulay
AU - H. Yin
AU - S. Suissa
BT - Birth Defects Res A Clin Mol Teratol
DO - 10.1002/bdra.23271
M1 - 9
PY - 2014
SP - 658
EP - 62
T2 - Birth Defects Res A Clin Mol Teratol
TI - Immortal time bias in observational studies of drug effects in pregnancy
VL - 100
SN - 1542-0752
ER -