TY - STAND AU - J. Delaney AU - E. Moodie AU - S. Suissa BT - Pharmacoepidemiol Drug Saf DO - 10.1002/pds.1553 M1 - 6 PY - 2008 SP - 535 EP - 45 T2 - Pharmacoepidemiol Drug Saf TI - Validating the effects of drug treatment on blood pressure in the General Practice Research Database VL - 17 SN - 1053-8569 ER -