91丝瓜视频

Methodological research on the development of new statistical methodology and collaborative research, in which these new methods are applied in epidemiologic and clinical studies. Main focus on flexible modelling of survival data, including changes in relative risks over time, detecting thresholds and lags in the effects of risk factors and interventions, and the impact of using ecologic variable on estimated risks. Epidemiology of Cardiovascular disease, cancer, arthritis, as well as with cohort studies of drug utilization patterns and their effects.