Learning how to control biases in studies to identify adverse effects of drugs.
Unit of Health Care Epidemiology, Oxford University, Rosemary Rue Building, Old Road Campus, Oxford OX3 7LF, UK. martin.vessey@dphpc.ox.ac.uk
Martin
M
Vessey
D015982:Bias; D016022:Case-Control Studies; D003271:Contraceptive Agents, Female / Q000009:adverse effects*; D005260:Female; D020249:Hormone Replacement Therapy / Q000009:adverse effects*; D006801:Humans; D016032:Randomized Controlled Trials as Topic; D013923:Thromboembolism / Q000139:chemically induced*
D003271:Contraceptive Agents, Female